109) You are traveling at 55 mi/h along the +x-axis relative to a straight, level road and pass a car that is traveling at 45 mi/h. STUDY. 106) A boy kicks a football with an initial velocity of 20 m/s at an angle of 25° above the horizontal. Match. A Graph 1 B Graph 2 C Graph 3 D Graph 4 7. 9) A vector has components Ax = 12.0 m and Ay = 5.00 m. 10) The x and y components of a vector in a horizontal plane are 4.00 m and 3.00 m, respectively. Coulomb (C) Charge on one electron. 29) A ball is thrown horizontally from the top of a tower at the same instant that a stone is dropped vertically. The height of the platform above the ground is 2.00 m. What is the angle below the horizontal of the velocity of the puck just before it hits the ground? Learn. How long does the athlete stay in the air, assuming no significant air resistance? Neglect air resistance, take upward as the positive direction, and use g = 9.8 m/s2. Bachelors Physics (Chapter 3) Quiz on Mastering Physics: Chapter 3, created by Jillian Caldwell on 13/02/2016. Learn physics chapter 3 with free interactive flashcards. Physics: Chapter 3 Test . The rock is observed to strike the ground 43 m from the base of the building. 136) An object slides on a level floor. Write. It rests on a smooth horizontal table and is connected by a very light horizontal string over an ideal pulley to block B, which has a mass of 2.00 kg. It leaves the edge of the cliff with an initial velocity of 15 m/s directed at 25° from the vertical and experiences no appreciable air resistance as it travels. The air resistance is negligibly small. Neglect air resistance. 22) The figure shows two vectors and , along with their magnitudes and directions. Compare the time it takes each to reach the lake below if there is no air resistance. Force. Use components to determine how far the airplane ends up from its starting point. Questions will be matching, multiple choice, fill in the blank or short answer. Jay_Brooks14. (a) Alice (b) Alice arrives 110 s before John. 85) A projectile is fired from ground level with a speed of 150 m/s at an angle 30° above the horizontal on an airless planet where g = 10.0 m/s2. Which object is traveling faster when it hits the level ground below if neither of them experiences any air resistance? It then rolls on a flat surface for an additional 3 minutes and travels 300 m. 9) The sum of two vectors of fixed magnitudes has the greatest magnitude when the angle between these two vectors is, 10) The sum of two vectors of fixed magnitudes has its minimum magnitude when the angle between these vectors is. Limited license to copy granted on Teacher’s Edition copyright page. Find the magnitude of the sum of these four vectors. Start studying Physics: Chapter 8. In how many hours will they meet? Vector has a magnitude of 4.0 m and points 30° east of north. Write. Mastering Physics Solutions. If the velocity of the plane relative to the ground is directly eastward, what is the magnitude of that velocity? 102) A projectile is thrown upward at 24° with the vertical and returns to the horizontal ground 12.5 s later with no air drag. A 20.0 m/s wind is blowing southward at the same time as the plane is flying. What was the angle of the mountain surface above the horizontal? About This Quiz & Worksheet. Find the x and y components of the resultant of these three vectors. 4) When Jeff ran up a hill at 7.0 m/s, the horizontal component of his velocity vector was 5.1 m/s. The components of are closest to: 13) The components of vectors and are given as follows: 14) A car travels 20 km west and then 20 km south. Mary throws her snowball downward, at 30° below the horizontal; Debra throws her snowball upward, at 30° above the horizontal. 17) The components of vectors and are given as follows: 18) If vector has components Ax = -3.0 lb and Ay = -4.0 lb, and vector has components Bx = 3.0 lb and By = -8.0 lb, what is the magnitude of vector = - ? 77) A hockey puck slides off the edge of a horizontal platform with an initial velocity of 28.0 m/shorizontally in a city where the acceleration due to gravity is 9.81 m/s2. She gives the ball an initial speed of 8.0 m/s at an angle of 40° above the horizontal. 2) Two displacement vectors have magnitudes of 5.0 m and 7.0 m, respectively. Save. It travels 500 m in 1 minute. Play this game to review Physics. The jet stream (moving air) carries the plane at 30 m/s toward the east. Solo Practice. Chapter 3 Vectors In Physics Q.1CQ For the following quantities, indicate which is a scalar and which is a vector: (a) the time it takes for you to run the 100-yard dash; (b) your displacement after running the 100-yard dash; (c) your average velocity while running; (d) your average speed while running. Practice. W=? 137) A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. A body in uniform circular motion experiences acceleration that is constant in magnitude. 118) A submarine must travel how fast (with respect to the water) and be pointed in what direction such that it moves 10 m/s directly northward (relative to the earth) if the water moves westward at 5.0 m/s? The difference - is best illustrated by, 13) Consider two vectors and shown in the figure. 117) A pickup truck moves at 25 m/s toward the east. Match. 60) The acceleration due to gravity on the Moon is only one-sixth of that on Earth, and the Moon has no atmosphere. If you hit a baseball on the Moon with the same effort (and therefore at the speed and angle) as on Earth, how far would the ball would travel on the Moon compared to on Earth? 107) A projectile is fired from ground level on a horizontal plain. Must knows!! It 9th grade . 122) A plane has an eastward heading with an airspeed of 156 m/s. Dressy coat dresses 6 . Spell. A person at rest on the ground would see the ball moving how fast in what direction? You should head your motorboat, 39) You push on box G that is next to box H, causing both boxes to slide along the floor, as shown in the figure. Mastering Physics Solutions. It hits the ground at a point 60 m from the building without appreciable air resistance. 98) A projectile is fired from ground level with an initial speed of 55.6 m/s at an angle of 41.2° above the horizontal. Study Ultrasound Physics and ensure you don't forget them later with our adaptive flashcards! Learn test conceptual physics chapter 3 projectile motion with free interactive flashcards. Which graph might show the velocity of a … Spell. Write. 63) A fisherman casts his bait toward the river at an angle of 25° above the horizontal. The sum of these four vectors is a vector having magnitude and direction, 42) Vector has a magnitude of 8.0 m and points 30° north of east; vector has a magnitude of 6.0 m and points 30° west of north; and vector has a magnitude of 5.0 m and points 30° west of south. What is the length of the athlete's jump if air resistance is of no significance? Give the direction by specifying the angle (clockwise or counterclockwise) of the pull with the direction of rope A. Choose from 500 different sets of test conceptual physics chapter 3 projectile motion flashcards on Quizlet. This quiz is incomplete! 7/16/2018 Conceptual Physics, chapter 19 Flashcards | Quizlet 3/7 wave is the distance between successive crest. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Feedback. Learn. 20 Questions | By Jcorder | Last updated: Jan 28, 2013 | Total Attempts: 742 . Next, it flies due south. 6) If + = and their magnitudes are given by A + B = C, then the vectors and are oriented. 76) A hockey puck slides off the edge of a horizontal platform with an initial velocity of 20 m/s horizontally and experiences no significant air resistance. Write. He determines that the distance between the point that the driver slammed on the brakes (thereby locking the wheels) and the point where the car came to a stop was 28.0 m. From a reference manual he determines that the coefficient of kinetic friction between the tires and the road under the prevailing conditions was 0.300. If the boat heads perpendicular to the current, what is the speed of the boat relative to an observer standing on the shore as it crosses the river? While it is falling, its trajectory is never truly vertical. ... Chapter 3 - p.53 Show Class ultrasound physics . Search all of SparkNotes Search. He throws the discus with an initial velocity of 20 m/s at an angle of 60° from the vertical. Spell. What must be the heading of the plane in order to move directly eastward relative to the ground? This quiz and corresponding worksheet will help you gauge your understanding of physics' history and branches. 45) The figure shows four vectors, , , , and , having magnitudes 12.0 m, 10.0 m, 8.0 m, and 4.0 m, respectively. Questions. 39) Three forces, 1, 2, and 3, each of magnitude 70 N, all act on an object as shown in the figure. 125) An airplane flies between two points on the ground that are 500 km apart. Created by. ), 37) A rock is thrown from the upper edge of a tall cliff at some angle above the horizontal. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 15) You walk to the north, then turn 60° to your right and walk another How far are you from where you originally started? After 2.0 s, the magnitude of the velocity of the rock is closest to. The magnitude of the resultant of the three vectors is closest to. STUDY. John takes a running start and jumps with an initial horizontal velocity of 25 m/s. One automobile is moving at 60 km/h and the other is moving at 40 km/h. 130) A plane flies directly from city A to city B, which are separated by 2300 mi. 37) An airplane undergoes the following displacements, all at the same altitude: First, it flies in a direction 30.0° east of north. Learn. Which of the following statements are true about just as the snowballs reach the ground below? As the line unravels, he notices that the bait and hook reach a maximum height of What was the initial velocity he launched the bait with? 139) A 50-kg box is being pushed along a horizontal surface. Just as the rock reaches the water, find. Terms in this set (7) Electric Charge. 23) Displacement vector is 5.5 cm long and points along the +x-axis. Key Concepts: Terms in this set (35) We say that the displacement of a particle is a vector quantity. true. Chapter 3: VECTORS Chapter 4: MOTION IN TWO AND THREE DIMENSIONS Question 1 Two automobiles are 150 kilometers apart and traveling toward each other. Chapter 3 Study Guide: Projectile Motion. Dynamics. Compare the times of fall of the two pebbles. View Notes - Physics Chapter 20 Test Review Flashcards _ Quizlet.pdf from PHYSICS 120 at ECPI University. 5) A student adds two displacement vectors that have the magnitudes of 12.0 m and 5.0 m. What is the range of possible answers for the magnitude of the resultant vector? If these two vectors are added together, the magnitude of the sum. 138) A policeman investigating an accident measures the skid marks left by a car on the horizontal road. Want to know why and how matter and energy behave the way they do? What is the groundspeed of the plane? The acceleration due to gravity at this location is 9.80 m/s2. 16) The magnitude of a vector can never be less than the magnitude of any of its components. 110) Your motorboat can move at 30 km/h in still water. These vectors satisfy which one of the following statements? How fast was the car going when the driver applied the brakes? PLAY. The resultant vector + is given by, 27) Vector has a magnitude of 6.0 m and points 30° north of east. 75) A hockey puck slides off the edge of a platform with an initial velocity of 20 m/s horizontally. Physics. 105) A projectile is launched with an initial velocity of 80 m/s at 30° above the horizontal. A scalar quantity multiplied by a unit vector is a scalar quantity. Key Concepts: Terms in this set (67) The airport is located at the origin. Speed = Q. What is the horizontal component of the boy's velocity? What is the westward component of the displacement of the football? Physics. How far from the base of the cliff does it strike the level ground below if air resistance is negligible? What was the vertical component of Jeff's velocity? Which one of the following statements must be correct for these two vectors? 2. Chapter 3 … emilycarroll7. Chapter 3 Vectors In Physics Q.1CQ For the following quantities, indicate which is a scalar and which is a vector: (a) the time it takes for you to run the 100-yard dash; (b) your displacement after running the 100-yard dash; (c) your average velocity while running; (d) your average speed while running. (Note: There are two possible answers.). Test. Which one of the following is a possible value for the magnitude of the resultant? 8) A player throws a football 50.0 m at 61.0° north of west. 88) A child is trying to throw a ball over a fence. Calculate the magnitude and direction of, 20) Two perpendicular vectors, and , are added together giving vector . The ball leaves her hand 1.0 m above the ground and the fence is 2.0 m high. How far apart will the two packages land on the ground if air resistance is negligible? 81) A projectile is shot horizontally at 23.4 m/s from the roof of a building 55 m tall and experiences negligible air resistance. It falls for 2.28 s before reaching the water below with no appreciable air resistance. 54) A ball is thrown with an initial velocity of 20 m/s at an angle of 60° above the horizontal. C 6. Gravity. Share practice link. What minimum tension is required in the cable in order for the log to begin to slide? Sample Decks: Chapter 3 - Atomic Combinations, Chapter 5: Geometrical Optics, Chapter 4 - Intermolecular Forces Show Class Physics 101-2 (metc) Physics 101-2 (metc) Flashcard Maker: Jovan Harris. Physics Test 3. If we can neglect air resistance, what is the horizontal component of its instantaneous velocity at the exact top of its trajectory? Express the direction of the resultant by specifying the angle it makes with the +x-axis, with counterclockwise angles taken to be positive. 14) Refer to the figure, which shows four vectors , , , and . 7/16/2018 Physics Chapter 20 Test Review Flashcards | Quizlet Physics Chapter 20 … by vnaressi. 71) A girl throws a rock horizontally with a speed of 12 m/s from a bridge. 104) As shown in the figure, a projectile is fired at time t = 0.00 s, from point 0 at the upper edge of a cliff, with initial velocity components of and The projectile rises and then falls into the sea at point P. The time of flight of the projectile is and air resistance is negligible. 2) The x component of vector is 8.7 units, and its y component is -6.5 units. The height of the platform above the ground is 2.00 m. What is the speed of the puck just before it hits the ground? Vectors and each have a magnitude of 7.0 cm, and vectors and each have a magnitude of 4.0 cm. If air resistance can be neglected, what was the projectile's initial speed? 120) The driver of a motorboat that can move at 10 m/s in still water wishes to travel directly across a river in which the current flows at 5.0 m/s. Relative to the sun…. 133) In the figure, block A has a mass of 3.00 kg. Easy way to poach an egg 1 . My highlights. Multiple Choice Problems Chapter 2: MOTION ALONG A STRAIGHT LINE Chapter 3: VECTORS Chapter 4: MOTION IN TWO AND THREE DIMENSIONS Question 1 A vector has a magnitude of 12. The height of the platform above the ground is 2.0 m. What is the magnitude of the velocity of the puck just before it touches the ground? 93) A child throws a ball with an initial speed of 8.0 m/s at an angle of 40° above the horizontal. Chapter 2 Section 1,2 & 3 Physics Test. What was the angle of launch if g = 9.80 m/s2? Physics Chapter 3. Start studying Physics Chapter 3. The result will be one wave that is the sum of their combined effects what is constructive interference? Quickly memorize the terms, phrases and much more. Vector has a magnitude of 2.0 m and points 30° north of west. Flashcards. 96) A projectile is fired at an angle above the horizontal at a location where g = 9.8 m/s2. 126) A swimmer heading directly across a river that is 200 m wide reaches the opposite bank in 6 min 40 s. During this swim, she is swept downstream 480 m. How fast can she swim in still water? College Physics for AP® Courses Chapter 3. 12) Consider two vectors and shown in the figure. It slows and comes to a stop with a constant acceleration of magnitude 2.4 m/s2. Edit. 67) At target practice, a rifle bullet is fired at an angle of 30° below the horizontal with an initial velocity of 800 m/s from the top of a cliff 80 m high. Conceptual Physics. The puck experiences no significant air resistance as it falls. 58) A ball thrown horizontally from a point 24 m above the ground, strikes the ground after traveling horizontally a distance of 18 m. With what speed was it thrown, assuming negligible air resistance? 99) At a location where g = 9.80 m/s2, a projectile returns to its original height after 4.08 seconds, during which time it travels 76.2 meters horizontally. Physics Chapter 3. 70) A hunter points a rifle horizontally and holds it 3.30 m above the ground. 61) A boy throws a rock with an initial velocity of at 30.0° above the horizontal. 11) Vectors and obey the equation + = 0. 48) The figure shows three vectors, , , and , along with their magnitudes. Played 448 times. It reaches its highest point and starts falling down. Learn physics first chapter 3 with free interactive flashcards. 87) A projectile leaves the ground at 150 m/s and reaches a maximum height of 0.57 km. 47) The figure shows four vectors, , , , and . Displacement vector is 7.5 cm long and points at +30° to the -x-axis. How long after firing does it take before the projectile hits the level ground? 22) Vector is along the +x-axis and vector is along the +y-axis. 52) A runner runs on a circular path of radius 10 m. What is the magnitude of the displacement of the jogger if he runs. How high is the cliff? Vector has magnitude and is directed to the south. How far is point P from the base of the pylon? 19) Vector has magnitude 2 units and is directed to the north.