Tarzan, who weighs 708 N, swings from a cliff at the end of a convenient vine that is 18 m long (see the gure). From the top of the cliff to the bottom of the swing, he descends by 3.2 m. The vine will break if the force on it exceeds 1470 N. What would the greatest force on the vine be during the swing? L V Number I Units In the figure here, two children are playing a game in which they try to hit a small box on the floor with a marble fired from a spring- loaded gun that is mounted on a table. The target box is horizontal distance D = 2.21 m from the edge of the table. Bobby compresses the spring 1.14 cm, but the center of the marble falls 27.9 cm short of the center of the box. How far should Rhoda compress the spring to score a direct hit? Assume that neither the spring nor the ball encounters friction in the gun. D Number i Unit