A ball of mass m is tied to a string and is rotating in a vertical...

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Physics

A ball of mass m is tied to a string and is rotating in avertical plane. The string is elastic (it stretches), which causesthe path to be elongated vertically rather than perfectly circular.At the top of the path, the speed has the minimum value that stillallows the ball to complete its circular path. Find: the length ofthe string when it makes an angle θ with respect to the horizontal.The following quantities are known: Mass of the ball , m Elasticconstant of the string, k Length of the string when the ball is atthe top , r0 and angle θ.

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