Question

Moon revolve around the earth due to gravitational force (f)of of earth on moon the work done by the gravitational force is radius (r) of circular orbit of moon

Answer 1

Answer:

mgr

Explanation:

Since force exerted by earth on the moon is gravitational force which is conservative force. Conservative force is the force which doesn't depend on path and only depends on initial and final positions.

Examples for conservative forces are gravitational, electrostatic and spring forces.

work done by any conservative force is equal to potential energy of that object.

i.e., work done by gravitational force of earth = potential energy of moon

= weight × distance between earth and moon

= W × radius of circular orbit

Answer 2

Answer:

The work done by

The work done by gravitational force is 0.

Explanation:

as the moon is revolving around the earth and the displacement of moon is at right angle to earth.