Question

A coolie with load on his head is walking on a horizontal platform what is work done against gravity.

Answer 1

work done = 0

because W=Fs*cos theta

here force acts perpendicular to displacement.

so W=Fs*cos90 degree=Fs*0=0

please mark me the brainliest...

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