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A bullet of mass 0.02 kg travelling hori...

A bullet of mass 0.02 kg travelling horizontally with velocity 250`ms^(-1)` strikes a block of wood of mass 0.23 kg which rests on a rough horizontal surface. After the impact, the block and bullet move together and come to rest after travelling a distance of 40m. The coefficient of sliding friction of the rough surface is `( g = 9.8 ms^(_2))`

A

(a)0.75

B

(b)0.61

C

(c)0.51

D

(d)`0.30`

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