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pshichka [43]
3 years ago
14

A 1.00-kilogram ball is dropped from the top of a building. just before striking the ground, the ball's speed is 12.0 meters per

second. what was the ball's gravitational potential energy, relative to the ground, at the instant it was dropped? [neglect friction.]
Physics
1 answer:
Anarel [89]3 years ago
6 0
During the fall, the potential energy stored in the ball is converted into kinetic energy.
Thus,
PE = KE before hitting the ground
= 1/2 • mv^2
= 1/2 • 1 • 12^2
= 72J
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