Tarzan, who has a mass of 85.0kg, is going to cross a gorge by swinging in an arc from a 4.0m long hanging vine. If his arms are capable of exerting a force of 1500N on the rope, what is the maximum speed he can tolerate at the tolerate at the lowest point of his swing?

Answer 1

Remember that he has to support his own weight in addition to the centripetal force at the lowest point:
mv²/r + mg = 1500N
Solve for v.

Answer 2

Uhub