Question

A boy weighing 40kg climbs up a tree of height 5m. Calculate the amount of work done

Answer 1

W=fdCos90°
W=40×5×0
W=0J

Answer 2

MATH ARYYABHATA IS A GENIUS

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THAT'S THE CORRECT ANSWERE

BUT HERE IS SOME UNDERSTANDING

M=FORCE×DISPLACEMENT COS 90°

M=40×5×0(any number multiply by 0 is equal to 0)

Therefore. the answers is M=0

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THANKS GUYS