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Physics, 09.06.2020 21:57 xwilliams83

A 2.0-kg rock initially at rest loses 400 J of potential energy while falling to the ground.
a. Calculate the kinetic energy that the rock
gains while falling.
b. What is the rock's speed just before it
strikes the ground?

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A 2.0-kg rock initially at rest loses 400 J of potential energy while falling to the ground.
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