Tarzan wishes to save Jane from the jaws of a large Tyrannosaurus Rex. He deftly throws a rope upwards, catching it on a lower tooth which is at a height of 150 m above the ground. He knows that jungle vines can withstand a tension force of 1.5 times his weight. If he has a mass of 200 kg find

a. the maximum acceleration of Tarzan up the vine.

b. the length of time required to climb the vine