A 730-kg parachutist falling vertically at a speed of 660ms, Ask an Expert

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A 73.0-kg parachutist falling vertically at a speed of 6.60m/s impacts the ground, which brings him to a complete stop in a distance of 0.97m (roughly half of his height). Assuming constant acceleration after his feet first touch the ground, what is the average force exerted on the parachutist by the ground? Express your answer to two significant figures and include the appropriate units.

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