Asked by Brittany
A 2.0-kg rock is dropped from a height of 21.0 m. At what height is the rock's kinetic energy twice its potential energy?
Answers
Answered by
oobleck
you want 1/2 mv^2 = 2mgh
so plug in your numbers and solve for h
note that the mass does not matter.
so plug in your numbers and solve for h
note that the mass does not matter.
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