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A 7.0-kg shell at rest explodes into two fragments, one

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 90P Chapter 8

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 90P

A 7.0-kg shell at rest explodes into two fragments, one with a mass of 2.0 kg and the other with a mass of 5.0 kg. If the heavier fragment gains 100 J of kinetic energy from the explosion, how much kinetic energy does the lighter one gain?

Step-by-Step Solution:

Solution 90P Step 1 of 4: In the given problem, before explosion the M= 7kg shell is at rest u= 0. This shell explosives into two fragment, one being heavier with mass m =5 kg wihh kinetic energy KE h 100 J moving with speed v and thehlighter one with mass m =2 kg with klnetic energy KE movlng with speed v , here wl need to calculate the KE = of the liglter mass after explosion Given data, Before explosion, M= 7 kg Speed, u=0 After explosion, Heavier mass , Mass m =5hkg Kinetic energy KE = 10h J Speed, v =h Lighter mass, Mass m =2 kg l Kinetic energy KE = l Speed, v =l

Step 2 of 4

Chapter 8, Problem 90P is Solved
Step 3 of 4

Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

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A 7.0-kg shell at rest explodes into two fragments, one