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A bullet fired at a wooden block of thickness 0.15m manages to penetrate the block. If ...

A bullet fired at a wooden block of thickness 0.15m manages to penetrate the block. If the mass of the bullet is 0.025kg and the average resisting force of the wood is 7.5 x 103N, calculate the speed of the bullet just before it hits the wooden block.

A. 450ms-1
B. 400ms-1
C. 300ms-1
D. 250ms-1




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