A rifle with a weight of 25 n fires a 40 g bullet with a

A rifle with a weight of 25 N fires a 4.0 g bullet with a speed of 290 m/s.

(a) Find the recoil speed of the rifle.

(b) If a 750 N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle.

m/s

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