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An object is thrown horizontally from a tower H meter high with a velocity of `sqrt(2gH)` m/s. Its velocity on striking the ground will be :A. `sqrt(2gH)`B. `sqrt(6 gH)`C. `2 sqrt(gH)`D. `2 sqrt(2 gH)` |
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Answer» Correct Answer - C `W_(g) = Delta K.E.` `mgH = (1)/(2) mv^(2) - (1)/(2) m (sqrt(2gH))^(2)` |
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