Question

A 0.125-kg steel ball with a kinetic energy of 0.25 j rolls along a horizontal track. How high up an inclined track will the ball roll if friction can be ignored?

Answer 1

Answer:

At the highest point the ball will stop so it's kinetic energy becomes zero and all the energy will be converted into gravitational potential energy which is 0.25 joules

Mgh=0.25

h=0.25/1.25=1/5=0.2metres