Question

a coolie is moving on the road with aluggage on his head does he perform work against gravity?expalin

Answer 1

no,there is no work acting in this situation.this is because the force is acting in perpendicular direction and the coolie is moving in the straight line.therefore the work done is 0.

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