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When two bodies collide elastically, the...

When two bodies collide elastically, then

A

Kinetic energy of the system alone is conserved throughout the collision

B

Only momentum is conserved throughout the collision

C

Both kinetic energy and momentum are conserved throughout the collision

D

Neither kinetic energy nor momentum is conserved throughout the collision

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • When two bodies collide elastically, the force of interaction between them is

    A
    conservative
    B
    non-conservative
    C
    either conservative or non-conservative
    D
    zero

  • When two bodies collide elastic, then:

    A
    `KE` of the system along is conserved
    B
    only momentum is conserved
    C
    both `KE` and momentum are conserved
    D
    neither `KE` nor momentum is conserved

  • Comprehension # 2 When two bodies collide normally they exert equal and opposite impulses on each other. Impulse = change in linear momentum. Coefficient of restitution between two bodies is given by :- e = |"Relative velocity of separation"|/|"Relative velocity of approach"| = 1 , for elastic collision Two bodies collide as shown in figure. During collision they exert impulse of magnitude J on each other. If the collision is elastic, the value of J is ............. N-s :-

    A
    `10//3`
    B
    `5//4`
    C
    `8//3`
    D
    `3//2`