Question

If 784j of worj qas done in kifting a 20 kg mass.calculate the height through which it was lifted.....

Answer 1

hope it helps you.......

Answer 2

ANSWER
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WORK = 784 JOULE
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MASS = 20 KG
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G = 9.8 M / S ^ H
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W = MGH
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$h \: = \frac{784}{20 \times 9.8} \\ = 4 \: \: metre$