Question

5. A coolie is moving on a road with a luggage on
his head. Does he perform work against the
force of gravity? Give reason for your answer.
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Answer 1

Answer:

no

Explanation:

because angle between force and displacement is 90 degree and as work is equal to force multiplied by displacement multiplied by cos thita .

Answer 2

$\huge\star\mathfrak\red{{Hey Mate...!!}}$

● 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