A 42.0-kg parachutist lands moving straight downward with a speed of 3.85 m/s. (a) If the parachutist comes to rest with a constant acceleration over a distance of 0.750 m, what force does the ground exert on her? (b) If the parachutist comes to rest over a shorter distance, is the force exerted by the ground greater than, less, than or the same as in part (a)? Explain.

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