Question

What is the work done by a coolie walking on a horizontal platform with a load on his head? ​

Answer 1

Answer:

zero

Step-by-step explanation:

work done by the coolie is zero as the gravitational force acting on load is perpendicular to the displacement in the horizontal direction

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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