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Answer:
P.E at height 75m=mgh=50 x 10 x 75=37500 J
P.E at height 60m=mgh=50 x 10 x 60=30000 J
therefore, change in gravitational P.E - ΔP.E=37500-30000=7500 J
PLEASE MARK IT BRAINLIEST IF YOU ARE SATISFIED
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