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An old clock has a spring that must be wound to make the clock hands move. Which statement describes the energy of the spring and hands of the clock?

Answer :

kvnmurty
The kinetic energy of the hands of the clock is converted from the potential energy of the spring, that is wound initially.

   Elastic tortional energy in the sping (Potential energy) + kinetic energy spent the hands of the clock = Initial energy given by winding = constant

   1/2 * T * θ²  + (power required to move the hands) * (time elapsed after winding the key) = 1/2 T * θ₀²


The spring has potential energy and the hands have kinetic energy.

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