A kid slides down an icy (frictionless) hill starting from rest. At the top his gravitational potential energy is 500 J.
-His kinetic energy at the top of the hill is
A)0 J.
B)500 J.
C)some value between 0 and 500 J.
D)none of the above.

Question

Quizplus · Accepted Answer

At the top of the hill, all the potential energy has not yet been converted to kinetic energy. Therefore, the kinetic energy is 0 J at the top of the hill.

A Kid Slides Down an Icy (Frictionless) Hill Starting from Rest