Tarzan, who weighs 668 N, swings from a cliff at the end of a convenient vine that is 23.0 m long (see the figure). From the top of the cliff to the bottom of the swing, he descends by 3.2 m.
If the vine doesn't break, what is the maximum magnitude of the tension in the vine?
The Attempt at a Solution
i know that the max tension is at the bottom, so i made a force diagram at the bottom of the path, and summed the forces to get
mv^2/r + mg= T
i found the mass, but my only missing variable is the velocity of the "pendulum."
i am completely stuck on this part. Thanks for any help!