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A bullet of mass 20 g has a n initial sp...

A bullet of mass 20 g has a n initial speed of `1ms^(-1)` just before it starts penetrating a mud wall of thichness 20cm. If the wall offers a mean resistance of `2.5xx10^(-2)N` the speed of the bullet after emerging from the other side of the wall is close to:

A

`0.7 ms^(-1)`

B

`0.3 ms^(-1)`

C

`0.1 ms^(-1)`

D

`0.4 ms^(-1)`

Text Solution

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The correct Answer is:
A
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