Motion in One Dimension

timer Asked: Mar 25th, 2015

Question description

To protect his food from hungry bears, a boy scout raises his food pack with a rope that is thrown over a tree limb at height h above his hands. He walks away from the vertical rope with constant velocity v boy , holding the free end of the rope in his hands (Fig. P2.70 –attached file).

(a) Show that the speed v of the food pack is v boy , where x is the distance he has

walked away from the vertical rope. (b) Show that the acceleration a of the food pack is

(c) What values do the acceleration and velocity have shortly after he leaves the point under the pack

(x _ 0)? (d) What values do the pack’s velocity and acceleration approach as the distance x continues to increase?

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