Question

Which statement correctly describes the gravitational potential energy of the pendulum based on this diagram?

A.
It is greatest at 25% of the period length.
B.
It is greatest at the point where the arm meets the pivot point.
C.
It is greatest when the bob is at its maximum amplitude.
D.
It is greatest when the bob is in the rest position.

Answer 1

I think it's 'C' but I won't know for sure until you let me see the diagram.