Describe a stone falling off the tabletop in terms of both kinetic energy and potential energy?

Answer 1

Sitting on the table the stone has potential energy, relative to the ground, of weight times height, mgh. It has zero kinetic energy so its total energy is E = 0 + mgh. When it begins falling it loses potential energy (as it loses height) and gains kinetic energy ( as it picks up speed) so the sum stays the same as initially E = KE + PE = mgh. Just before it hits the ground all of its potential energy is gone and has been transformed into kinetic energy. So the kinetic energy at the bottom (1/2)mv^2 will equal the potential energy at the top.

Answer 2

At first, kinetic energy (energy of movement). Once the stone hits the ground, most of the kinetic energy will usually be converted to heat.

At first, kinetic energy (energy of movement). Once the stone hits the ground, most of the kinetic energy will usually be converted to heat.

At first, kinetic energy (energy of movement). Once the stone hits the ground, most of the kinetic energy will usually be converted to heat.

At first, kinetic energy (energy of movement). Once the stone hits the ground, most of the kinetic energy will usually be converted to heat.

Answer 3

At first, kinetic energy (energy of movement). Once the stone hits the ground, most of the kinetic energy will usually be converted to heat.

Answer 4

Kinetic.

Answer 5

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