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A simple pendulum with a bob of mass `mwings with angular amplitude of 60. When itsangular displacement is 30°, the tension in thestring would be

Nandan Kumar , 7 Years ago
Grade 11
anser 1 Answers
Arun

Last Activity: 7 Years ago

Greater than mgcos30 . The tension in the string has to balance the component of mg in the direction of tension and also provide the necessary centripetal force. So, tension in the string is given by:
T=mv^2/r + mgcosθ
Thus, T will always be either greater than or equal to mgcosθ. There, T is greater than mgcos30.

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