Physics, 30.10.2019 02:31, amir6658

An 85.0-kg mountain climber plans to swing down, starting from rest, from a ledge using a light rope 6.50 m long. he holds one end of the rope, and the other end is tied higher up on a rock face. since the ledge is not very far from the rock face, the rope makes a small angle with the vertical. at the lowest point of his swing, he plans to let go and drop a short distance to the ground.

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An 85.0-kg mountain climber plans to swing down, starting from rest, from a ledge using a light rope...