Answer
a. The potential energy of A is greater than B in the initial setup. The potential energy of B is greater than A in the final setup.
b. The potential energy of A was converted into kinetic energy when it rolled down the ramp.
Work Step by Step
a. The potential energy of A is greater than B in the initial setup as A being held on a higher slope than B which is rolling. The potential of B is greater than A in the final setup as it at a higher slope than A.
b. The potential energy of A was converted into kinetic energy when it rolled down the ramp by the law of conservation of energy which states that energy must be converted.
