1 answer:
Answer:
H = start height (v = 0)
h = present height
v = present speed
assuming no friction
total energy = PE + KE
mgH = mgh + .5mv^2
if PE = KE then
mgH = mgh + mgh
h = H/2
potential energy = kinetic energy when object is at half its start height.
Explanation:
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The answer is c.
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B is the correct answer hope that helped
The answer is C, as there is not increase or decrease in speed during that time frame.
Answer:
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