Recoil speed of the man and rifle
A rifle with a weight of 30 N fires a 5.0-g bullet with a speed of 300 m/s. (a) Find the recoil speed of the rifle. (b) If a 700- N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle.
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The bullet strikes the block and becomes embedded in it. After the collision the combined object swings on the end of the cord. When the block has risen a vertical height of 0.825 m, the tension in the cord is 4.60 N. What is the initial velocity
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