How much work is performed by an elevator with a mass of 500 kg if it lifts three people with a combined mass of 180 kg a total distance of 100 meters?

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

the answer for apex is the lowest

the bal will not change its velocity.