a) The expression for the conservation of momentum:
solving for v0:
a) An 80 kg quarterback jumps straight up in the air right before throwing a 0.43 kg football horizontally at 15 m/s. How fast will he be moving backward just after releasing the ball?
b) Suppose that the quarterback takes 0.30 s to return to the ground after throwing the ball. How far will he move horizontally, assuming his speed is constant?
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