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A body dropped from a height of 20 m reb...

A body dropped from a height of 20 m rebounds to a height of 15 m. What is the loss is energy?

A

0.4

B

0.3

C

0.2

D

0.25

Text Solution

Verified by Experts

The correct Answer is:
D
At point P, P.E.=K.E
`:." "mgh=1/2mv^2`
`:." "h=(v^2)/(2g)=(10xx10)/(2xx10)=5m`
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