A bullet has a mass of 0.02 kg and is movingentmewith a speed of 10 m/s. It can penetrate 10 cmof a given target before coming to rest. If thesame target is only 6 cm thick, what will be thespeed and kinetic energy of the bullet, when itcomes out the target?

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10 g

strikes a fixed target and penetrates

8 c m

into it before coming to rest. if the average force of resistance offered by the target is

100 N

, with what velocity does it strike?

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