answer with solution in problem 7.12

Problem 7.12 (page 229) Tarzan and Jane. Tarzan, in one tree, sights Jane in another tree. He grabs the end of a vine with length 20 m that makes an angle of 45 with the vertical, steps off his tree limb, and swings down and then up to Jane's open arms. When he arrives, his vine makes an angle of 30 with the vertical. Determine whether he gives her a tender embrace or knocks her off her limb by calculating Ta rzan's speed just before he reaches Jane. Ignore air resistance and the mass of the vine