Question

You let a pendulum go and watch it swing back and forth. At what point of the swing does the potential energy of the pendulum equal its total energy? Ignore any outside forces that would slow the pendulum.(1 point)
Responses

just after it reaches the other side and begins swinging down
just after it reaches the other side and begins swinging down

at the top of the swing
at the top of the swing

at the bottom of the swing
at the bottom of the swing

halfway from the top of the swing to the bottom

Answer 1

At the top of the swing (the turning point). There the bob's speed is zero so kinetic energy is zero and all the mechanical energy is gravitational potential energy.