A bullet of mass 0.005 kg moving with a ...

A bullet of mass 0.005 kg moving with a speed of 200 `ms^(-1)` enters a heavy wooden block and is stopped after a distance of 50 cm. What is the average force exerted by the block on the bullet?

`-200` N

`+200 N`

`400 N`

`-400 N`

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