A ball of mass is stationary on top of hill of height 100m
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Answer : 40ms−140ms−1
mgh=12mgh=12mv2mv2
v=2gh−−−√v=2gh
v=2×10×80−−−−−−−−−√v=2×10×80
=40ms−1
mgh=12mgh=12mv2mv2
v=2gh−−−√v=2gh
v=2×10×80−−−−−−−−−√v=2×10×80
=40ms−1
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