Question

what is non contact forces write about gravitational force and electrostatic force

Answer 1

hi
The force which acts on an object without coming physically in contact with it is called non-contact force. The most familiar example of a non-contact force is weight. In contrast a contact force is a force applied to a body by another body that is in contact with it.
One major difference is in the strength of the forces. The gravitational attraction between two electrons is only 8.22*10−37 of the electrostatic force of repulsion at the same separation. However, gravitation usually is concerned with large masses, while any large collection of charges will quickly neutralize.
hope it helps you

Answer 2

non contact force means the between two objects without contact or from a distance is called non contact force
electrostatic force the force on charged body with another charged or non charged body is called electrostatic force.
the force between two massive objects is called gravitational force....