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|| BIO Force during a jump. An average person can reach a maximum height of about 60 em when jumping straight up from a crouched position. During the jump itself, the person's body from the knees up typically rises a distance of around 50 em. To keep the calculations simple and yet get a reasonable result, assume that the entire body rises this much during the jump. (a) With what initial speed does the person leave the ground to reach a height of 60 em? (b) Make a free-body diagram of the person during the jump. (c) 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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