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a body freely falling from a height h describes 7h/16 in the last second of its fall the height h is

a body freely falling from a height h describes 7h/16 in the last second of its fall the height h is

Grade:12th pass

1 Answers

Vikas TU
14149 Points
7 years ago
For h height apply 2nd law of eqn.
h = 0.5gt^2
and for last second 
apply
7h/16 = 0 + g/2(2t-1)
solve both the eqns and get h value.
It would come around 80 meter.

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