Concept explainers
Tennis Ball Testing
A tennis ball bouncing on a hard surface compresses and then rebounds. The details of the rebound are specified in tennis regulations. Tennis balls, to be acceptable for tournament play, must have a mass of 57.5 g. When dropped from a height of 2.5 m onto a concrete surface, a ball must rebound to a height of 1.4 m. During impact, the ball compresses by approximately 6 mm.
85. When a tennis ball bounces from a racket, the ball loses approximately 30% of its kinetic energy to thermal energy. A ball that hits a racket at a speed of 10 m/s will rebound with approximately what speed?
A. 8.5 m/s
B. 7.0 m/s
C. 4.5 m/s
D. 3.0 m/s
Want to see the full answer?
Check out a sample textbook solutionChapter 10 Solutions
COLLEGE PHYSICS:STRATEGIC APPR.AP ED.
Additional Science Textbook Solutions
College Physics
University Physics with Modern Physics (14th Edition)
An Introduction to Thermal Physics
Introduction to Electrodynamics
Physics: Principles with Applications
Conceptual Physical Science (6th Edition)
- Two identical steel balls, each of mass 67.4 g, are moving in opposite directions at 5.00 m/s. They collide head-on and bounce apart elastically. By squeezing one of the balls in a vise while precise measurements are made of the resulting amount of compression, you find that Hookes law is a good model of the balls elastic behavior. A force of 16.0 kN exerted by each jaw of the vise reduces the diameter by 0.200 mm. Model the motion of each ball, while the balls are in contact, as one-half of a cycle of simple harmonic motion. Compute the time interval for which the balls are in contact. (If yon solved Problem 57 in Chapter 7, compare your results from this problem with your results from that one.)arrow_forwardA ball is suspended by a string that is tied to a fixed point above a wooden block standing on end. The ball is pulled back as shown in Figure OQ8.14 and released. In trial A, the ball rebounds elastically from the block. In trial B, two-sided tape causes the ball to stick to the block. In which case is the ball more likely to knock the block over? (a) It is more likely in trial A. (b) It is more likely in trial B. (c) It makes no difference. (d) It could be either case, depending on other factors. Figure OQ8.14arrow_forwardBilliard balls have a mass of about 0.17 kg. a. A billiard ball (ball A) travelling with a velocity of 0.25 m/s to the right collides elastically with another billiard ball (ball B) travelling at 0.55 m/s in the opposite direction. If ball B has a final velocity of 0.26 m/s, then what is the final velocity of ball A?arrow_forward
- A tennis ball bouncing on a hard surface compresses and then rebounds. The details of the rebound are specified in tennis regulations. Tennis balls, to be acceptable for tournament play, must have a mass of 57.5 g. When dropped from a height of 2.5 m onto a concrete surface, a ball must rebound to a height of 1.4 m. During impact, the ball compresses by approximately 6 mm. When a tennis ball bounces from a racket, the ball loses approximately 30% of its kinetic energy to thermal energy. A ball that hits a racket at a speed of 10 m/s will rebound with approximately what speed?A. 8.5 m/s B. 7.0 m/s C. 4.5 m/s D. 3.0 m/sarrow_forwardA 50 kg teen running 6 m/s jumps onto a 6 kg skateboard that is stationary. After he jumps on, the combined speed of the skateboard and the teen is 5.4 m/s. The kinetic energy lost in the collision is: A. both 11% and 96 joules B. 96 j C. 11% D. 0arrow_forward2. A 0.45-kg ball, moving east with a speed of 4.90 m/s, has a head-on collision with a 0.900-kg ball initially at rest. a. Draw a picture of the problem and write all the given quantities. b. Assuming a perfectly elastic collision, what will be the speed and direction of each object after the collision?arrow_forward
- 3. A 20 g ball of clay travelling east at 3.0 m/s collides with a 30 g ball of clay travelling north at 2.0 m/s. What are the speed and the direction of the resulting 50 g ball of clay?arrow_forward4. A golf ball of mass 50 grams is struck and has a velocity of 70 m/s when it leaves the tee. The golf ball then hits a fence and comes to a stop in 0.02 seconds.a. What is the kinetic energy of the ball as it comes off the tee?b. What is the momentum of the ball as it comes off the tee?c. What is the stopping force acting on the ball?arrow_forward2. A 2kg ball moving at 8m/s to the right overtakes a 8kg ball which is moving at 3m/s to the right. What is the maximum amount of energy loss that can occur during this collision? 00 2kg 8m/s vd Sandrillos adi gorub led or o sd stryd babivor two s 8kg 3m/sarrow_forward
- Example questions Sad ball Наpрy ball 1. Students are given two spherical balls made of different materials, but of identical mass and diameter to experiment with. Each ball is dropped from an initial height, ho. The "sad ball" comes to rest without visibly bouncing when it strikes the tabletop. The "happy ball" bounces up to a final height h, where h < ho- A fellow student wants to use one of the balls in a carnival game where cups are knocked over by a thrown ball. Which ball should they use, happy or sad? In a clear, coherent, paragraph-length response that may also contain figures and/or equations, explain what physics principles explain why the happy ball bounces higher off of the tabletop and explain which ball makes the better choice as a projectile in the carnival game. A Answer the Question Basic Physics Cite Information Draw it all togetherarrow_forward3arrow_forwardPart A. What is the speed of the first marble immediately after the collision? Part B. What is the speed of the second marble immediately after the collision?arrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningClassical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning