At the top of a frictionless inclined plane, a .50 kilogram block of ice possesses 6.0 joules of gravitational potential energy with respect to the bottom of the incline. After sliding halfway down the plane, the block's gravitational potential energy is?

Answer 1

PE = 6/2 = 3 Joules. = Energy Lost.
PE = 6-3 = 3 Joules. = Energy remaining.

Answer 2

3 joules

Answer 3

3.0 J