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A body of mass 5 kg moving with a veloci...

A body of mass 5 kg moving with a velocity 10 m/s collides with another body of the mass 20 kg at rest, and comes to rest. The velocity of the second body due to collision is

A

2.5 m/s

B

5 m/s

C

7.5 m/s

D

10 m/s

Text Solution

Verified by Experts

The correct Answer is:
A
Momentum conservation
`5 xx 10 + 20 xx 0=5 xx 0 + 20 xx v rArr v= 2.5 m//s`
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