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A man carries a load of 50 kg through a height of 40m in 25 sec then what is mass |
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Answer» Take mass of MAN as 'M'. Assuming all energy is used to do WORK, USE G.P.E = mgh. Potential energy = (M+50) x 9.8 x 40 So G.P.E = 392M +19600 Other EQUATION; Power = W/t P = (392M + 19600)/25 so, 1568 x 25 = 392M + 19600 392M = 39200 - 19600 Mass 'M' = 19600/392 = 50KG. |
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