Respuesta :

Answer:

1 joule

Explanation:

If you drop a softball from just above your knee, the kinetic energy of the ball just before it hits the ground is about 1 joule

Answer:

When the ball is held up, it has a lot of potential energy and no kinetic energy. As it falls, it starts losing it's potential energy and speeds up to get more kinetic energy. When it hits the floor it has no potential energy, but lots of kinetic energy.

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