A girl of mass 40 kg sits in a swing formed by a rope of 6 m length A - Physics - Work Energy And Power

Question

A girl of mass 40 kg sits in a swing formed by a rope of 6 m length
A person pulls the swing to a side so that rope makes an angle of
60° with the vertical What is gain in potential energy of the
girl?

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A girl of mass 40 kg sits in a swing formed by a rope of 6 m length. A person pulls the swing to a side so that rope makes an angle of 60° with the vertical. What is gain in potential energy of the girl?