Question

Question
If a monkey drops a banana off of a cliff, where are the potential and kinetic energies of the banana equal?(1 point)
Responses

at the top
at the top

at the bottom
at the bottom

a quarter of the way down
a quarter of the way down

halfway down

Answer 1

Halfway down.

Reason: initial PE = mgH. At height y the PE = mgy and KE = mg(H − y). Setting mgy = mg(H − y) gives y = H/2, so PE = KE at the midpoint.