Question

When coolie carries load on their head is work done zero?

Answer 1

yes, because collie carries a load in which force and displacement are perpendicular to each other and makes 90° angle(we=fscos90°)

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