Question

the work done by the force of gravity on a child walking horizontally with a bag in his hand is ​

Answer 1

Answer:

zero

Explanation:

because displacement between earth and child is always zero

Answer 2

Answer:

Zero.

Explanation:

Work Done is 0, if force is acting perpendicular

W = F * s * cos α, where alpha is the angle.

for α = 90°, work done is 0