Aball whirls around in a vertical circle at the end of a string. the other end of the string is fixed at the center of the circle. assume that the total energy of the ball-earth system remains constant. (a) what is the tension in the string at the bottom?

Explanation:

Given

Let T be the tension in the string at the Bottom Point

thus

where m=mass of string

r=radius of circle

v=velocity at bottom point

and T_0 be the tension at highest Point

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