Question

A box of above 10 Kg is placed at a point A on a horizontal surface it is moved to a point B which is at a distance of 2 metre from A. If the line joining A and B is horizontal find the work done by the gravitational force on the box. Justify your answer

Answer 1

Answer:

The work done is calculated when the force & displacement occur in the same direction .

here, The the box is moving horizontally whereas the gravitational force acting on it is downwards direction..

Therefore , The work done by gravitational force is 0 in this case.

Note :- The gravitational force can play a role in creating friction ( f = u•N ) where N = mg.

But that is non - considerable case.

Mark as brainliest please

Explanation:

Answer 2

Answer:

box of about 10 KG is placed at a point a on a horizontal surface it is moved to appoint be which is at the same distance of 2 m from a if the line joining a and B is horizontal find the work done by the gravitational force on the box justify your answer