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A person reaches a maximum height of 58 cm when jumping straight up from a crouched...

A person reaches a maximum height of 58 cm when jumping straight up from a crouched position. During the jump itself, the person's body from the knees up rises a distance of around 41 cm. To keep the calculations simple and yet get a reasonable result, assume that the entire body rises this much during the jump. Initial velocity of jump is 3.4 m/s.

In terms of this jumper's weight W , what force does the ground exert on him or her during the jump?

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