Question

A 43.0 kg parachutist is moving straight downward with a speed of 3.70 m/s . If...

A 43.0 kg parachutist is moving straight downward with a speed of 3.70 m/s .

If the parachutist comes to rest with constant acceleration over a distance of 0.775 m , what force does the ground exert on her?

Express your answer to three significant figures and include the appropriate units.

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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Answer #1

Total work done = change inke - fxd= mFriv fx d = {m vi? fa mor = 43x (3.72² 2x0.775 2d 2 379.787 N If = 380N

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