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Statement of a problem № 3223

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A particle of mass m is moving in a vertical circle of radius R. When m is at the lowest position, its speed is 0.8944sqrt(5gR). The particle will move up the track to some point p at which it will lose contact with the track and travel along a path shown by the dotted line (Fig. 3.8). Show that the angular position of T will be 30°.

Solution:
A particle of mass m is moving in a vertical circle of radius R. When m is at th

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