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A bob of mass m suspended by a light str...

A bob of mass m suspended by a light string of length L is whirled into a vertical circle as shown in figure . What will be the trajectory of the particle if the string is cut at
(a) Point B ? (b) Point C? (c) Point X?

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When the bob is made to whirl into a vertical circle it requires centripetal force from the tension in the string . When string is cut , T = 0 and centripetal force is not available and the bob wiill move either in staright line path or in parabolic path .
(a) At point B , velocity is vertically downward , so
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