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A ball is released from the bottom of a tank filled with water up to 2m. On reaching the top its kinetic energy is found to be 16 J. Mass of the ball is 2 kg.
Ignoring the viscosity, let `W_(1)` be the work done by upthrust and `W_(2)` the work done by gravity, then `(g = 10 m//s^(2))`

A

`W_(1)=32 J, W_(2) =-16 J`

B

`W_(1)=-16 J, W_(2) =32 J`

C

`W_(1)=-56 J, W_(2) =-40 J`

D

`W_(1)=-40 J, W_(2) =-24 J`

Text Solution

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The correct Answer is:
C
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