2 A football weighs 2 N. It has 24 J of gravitational potential energy How far above the ground is it?
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Answer:
weight of football = 2N
potential energy = 24 J
- weight = mg (where m = mass , g = acceleration due to gravity )
- potential energy = mgh
mgh = 24
mg × h = 24
2 × h = 24
h = 12 m
HENCE, THE FOOTBALL IS 12 M ABOVE THE GROUND.
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