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MIT 8.01 Physics I Classical Mechanics, Fall 1999
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A Particle slides on the surface of a fixed smooth sphere starting from the topmost point.Find the angle rotated by the radius through the particle, when it leaves contact with the sphere.
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The angle rotated by the radius will be 90º, starting from the topmost the force which strikes it is the weight, but when it gets 90º the force which strikes it is the weight and the tangential velocity.
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