Work, Power and EnergyHard

Question

For a simple pendulum, a graph is plotted between its kinetic energy (KE) and potential energy (PE) against its displacement d. Which one of the following represents these correctly ? (graphs are schematic and not drawn to scale)

Options

A.
B.
C.
D.

Solution

KE = mω2[A2 - d2], downward parabola
PE = mω2d2, upward parabola.
KE
PE   

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