Hey, I was wondering if anyone can help analyze this problem with me. Here is the question.(adsbygoogle = window.adsbygoogle || []).push({});

A swing seat of mass M is connected to a fixed point P by a massless cord of length L. A child also of mass M sits on the seat and begins to sing with zero velocity at a position of which the cord makes a 60 degree angle with the vertical. The swing continues down until the cord is exactly vertical at which the time the child jumps off in a horizontal direction. The swing continues in the same direction until the cord makes a 45 degree angle with the vertical. At that point, it begins to swing in the reverse direction. With what velocity relative to the ground did the child leave the swing?

I known I have to use conservation of energy. Is this basically asking to find the speed of the swing at the low point. If so, why would you need to know that the swing goes up to 45 degrees. I am not sure how to link the two pieces of information concerning the angles in order to solve the problem

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# Homework Help: Energy Conservation Problem

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