Questions
The string of a pendulum of length l is displaced through 90o from the vertical and released. Then the minimum strength of the string in order to withstand the tension as the pendulum passes through the mean position is
detailed solution
Correct option is A
The velocity at the lowest point is given by v=(2gr)Further, T−mg=mv2r∴ T=mg+mv2r=mg+m(2gr)r=mg+2mg=3mgTalk to our academic expert!
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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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