Question

Choose the best option:
A coolie is walking on a railway platform with 20 kg load on his head. The amount of work done by him
is
a) 200N (b) 2003 (c)OJ (d) - 200J​

Answer 1

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Answer 2

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● The work done will be zero because a coolie carries a load make an angle of 90 degree wherever the 90 degree created the work done will be zero.

Proof:

W = FS Cos Q

W = FS Cos (90°)

W = FS (0)

W = 0