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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A small ball attached with one end of an inextensible thread is moving in a vertical circle. Ratio of its maximum to minimum velocity is 2:1. Calculate tension in thread and acceleration of the ball at the moment when velocity of the ball is directed vertically downward. (g=10m/s^2).

A small ball attached with one end of an inextensible thread is moving in a vertical circle. Ratio of its maximum to minimum velocity is 2:1. Calculate tension in thread and acceleration of the ball at the moment when velocity of the ball is directed vertically downward. (g=10m/s^2).

A particle of mass m is kept on a fixed smooth sphere of radius R at a position The bob of a pendulum at rest is given a sharp hit to impart a horizontal velocity u where l is the length of the pendulum. Find the angle rotated by the string before it becomes slack.