Question

A small ball of mass m at the end of string of lenght l is swung in a circular vertical loop.The speed of rotation is decreased to the point that the tension T on the string at the top of the loop drops to zero. (I) show the total forces on the ball. (ii) The velocity at the top of the loop (iii) The velocity of the ball at the bottom of the loop (iv) The total energy at the bottom of the loop

Answer 1

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