Croquet ball A moving at 8.2 m/s makes a head on collision with ball B of equal mass and initially at rest. Immediately after the collision ball B moves forward at 5.2 m/s Part A Itranscript What fraction of the initial kinetic energy is lost in the collision? Express your answer using two significant figures. —| ΑΣΦ ΔΚΕ/ΚΕ = Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining ?

Croquet ball A moving at 8.2 m/s makes a head on collision with ball B of equal mass and initially at rest. Immediately after the collision ball B moves forward at 5.2 m/s Part A Itranscript What fraction of the initial kinetic energy is lost in the collision? Express your answer using two significant figures. —| ΑΣΦ ΔΚΕ/ΚΕ = Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining ?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter8: Momentum And Collisions

Section: Chapter Questions

Problem 3OQ

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A soccer player runs up behind a 0.450-kg soccer ball traveling at 3.20 m/s and kicks it in the same direction as it is moving, increasing its speed to 12.8 m/s. (a) What is the change in the magnitude of the balls momentum? (b) What magnitude impulse did the soccer player deliver to the ball? (c) What magnitude impulse would be required to kick the ball in the opposite direction at 12.8 m/s, instead? (See Section 6.1.)
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In a “Top Fail” video (https://openstaxcollege.org/l/21topfailvideo), two women run at each other and collide by hitting exercise balls together. If each woman has a mass of 50 kg, which includes the exercise ball, and one woman runs to the right at 2.0 m/s and the other is running toward her at 1.0 m/s, (a) how much total kinetic energy is there in the system? (b) If energy is conserved after the collision and each exercise ball has a mass of 2.0 kg, how fast would the balls fly off toward the camera?
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