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A bob of mass m=4kg is suspended from a ...

A bob of mass m=4kg is suspended from a massless string of length l Other end of the string is fixed from the ceiling.A horizontal force `F=(3)/(4)mg` is applied on the bob when it at rest at the lowest position.The maximum tension (in Newton) in the string during the motion.is `10x`Then the value of x is (Take `g=10m/s^(2)`]

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