Work Energy And Power Question 323

Question: A particle of mass m collides inelastically with another particle of mass 3m which is at rest. After the collision first particle comes to rest. Then choose the wrong answer

Options:

A) coefficient of restitution between the particles is 1/3

B) loss of kinetic energy during collision is (1/3)mv2

C) velocity of second particle after collision is v/3 .

D) all of these

Show Answer

Answer:

Correct Answer: D

Solution:

[d] From conservation of linear momentum velocity of second particle after collision would be

V3 Coefficient of restitution is

e=relativevelocityofseparationrelativevelocityofapproach=V/3V=13

Loss in kinetic energy

=12vV212(3m)(V3)2=13mV2



NCERT Chapter Video Solution

Dual Pane