Question

A mass of 5kg is at a point A on a table. It is moved to point b, 25cm away, by applying a force of 20N in the direction of force. What is the
work done on the object by (i) the gravitational force,

Answer 1

Answer:

Zero

Explanation:

The work done is calculated by

W = F × d

Where d is the displacement in the direction of the Force

Since the mass is moved only horizontally from point A to point B

Therefore, there is no displacement in the vertical direction

The gravitational force is also acting in the vertical direction

Thus, the work done by the gravitational force is zero.

Hope this answer is helpful.