Motion in A Plane

Question: The string of pendulum of length \[l\] is displaced through \[{90^o}\] 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



1) \[mg\]
2) \[3mg\]
3) \[5\,mg\]
4) \[6\,mg\]
Solution: Explanation: Explanation
Non-uniform-circular-motion

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