Questions
A bob of mass 100 g tied at the end of a string of length 50 cm is revolved in a vertical circle with a constant speed of 1 ms–1. When the tension in the string is 0.7N, the angle made by the string with the vertical is (g = 10 ms–2) .
detailed solution
Correct option is D
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A pendulum of length / = l m is released from . The rate of change of speed of the bob at is (g = 10 )
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