1. A 7kg ball moving at 1m/s to the right collides witha 2kg ball which is moving at 8m/s to the left. Afterthe collision, the 7kg ball is moving to the left at 3m/s.a. What is the velocity of the 2kg ball after thecollision?s7kgb. What is the change in kinetic energy AE = Exf - Eki?Ostd1m/s 8m/s3m/s7kgalooo 111o TA SIST10disqea 1650 1514918 on0241201Vvores no 1912st que le visa dnogal (86kgc. What is the percent loss of energy? diw sosido as a dovesagzal (0SETSV (82kgdaw sosido nasallama (

Name: 1. A 7kg ball moving at 1m/s to the right collides witha 2kg ball whi
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Description: 1. A 7kg ball moving at 1m/s to the right collides witha 2kg ball which is moving at 8m/s to the left. Afterthe collision, the 7kg ball is moving to the left at 3m/s.a. What is the velocity of the 2kg ball after thecollision?s7kgb. What is the chang

Let the direction to right be positive, Total momentum before collision pi=7×1-2×8=7-16=-11 kg-m/s Let the velocity of 2 kg ball be v to the right, Hence final momentum, pf=2v-7×3=2v-21 kg-m/s Now by conservation of momentum pi=pf-11=2v-21⇒v=21-112=5 m/s Hence the velocity of the ball is 5m/sec to right after the collision.b) Change in kinetic energy ∆E=EKf-EKi=12×7×32+12×2×52-12×7×12+12×2×82=-11 Joules Hence there is a loss of 11 Joules of energy.c) percentage loss =lossEki×100=1112×7×12+12×2×82×100=1167.5×100=16.296 %

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Physics

1. A 7kg ball moving at 1m/s to the right collides with a 2kg ball which is moving at 8m/s to the left. After the collision, the 7kg ball is moving to the left at 3m/s. a. What is the velocity of the 2kg ball after the collision? Sib b. What is the change in kinetic energy AE = Exf - Eki? SALE to VA 7kg 1m/s 3m/s 7kg akror (21 8m/s V 6kg 2kg OPERE (A 38(8 03 (A ghsqo isod 131song oil and bid To gil (@ c. What is the percent loss of energy? diw sosido as et toves is SESVE (1

1. A 7kg ball moving at 1m/s to the right collides with a 2kg ball which is moving at 8m/s to the left. After the collision, the 7kg ball is moving to the left at 3m/s. a. What is the velocity of the 2kg ball after the collision? Sib b. What is the change in kinetic energy AE = Exf - Eki? SALE to VA 7kg 1m/s 3m/s 7kg akror (21 8m/s V 6kg 2kg OPERE (A 38(8 03 (A ghsqo isod 131song oil and bid To gil (@ c. What is the percent loss of energy? diw sosido as et toves is SESVE (1

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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