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A body of mass 5 kg makes an elastic col...

A body of mass `5 kg` makes an elastic collision with another body at rest and continues to move in the original direction after the collision with a velocity equal to `1//10^(th)` of its original velocity. The mass of the second body is

A

`4.09 kg`

B

`0.5 kg`

C

`5 kg`

D

`5.09 kg`

Text Solution

Verified by Experts

The correct Answer is:
A
`v_(1) = ((m_(1) -m_(2))/(m_(1) + m_(2))) u_(1)`.
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