A hoop is rolling without slipping along a horizontal surface with a speed of 4.50 m/s when it starts up a ramp that makes an angle of 25.0° with the horizontal. What is the speed of the hoop after it has rolled 3.00 m up the ramp?
A)2.80 m/s
B)1.91 m/s
C)2.06 m/s
D)3.79 m/s
E)8.02 m/s

Question

Quizplus · Accepted Answer

The correct answer is A because the hoop's speed decreases as it rolls up the ramp due to the conversion of kinetic energy to potential energy.

A Hoop Is Rolling Without Slipping Along a Horizontal Surface