Chemistry, 14.04.2021 22:50 davisnaziyahovz5sk

A student uses a lever and fulcrum to lift a rock off the ground. Which option describes when potential energy is converted into kinetic energy during this process?

a. when the lever is wedged beneath the rock but before it has been lifted

b. when the student presses down on one side of the lever to cause it to move

c. when the rock rests on the ground without the lever

d. when the rock rests above the ground

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A student uses a lever and fulcrum to lift a rock off the ground. Which option describes when poten...

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