Which of the following cannot be regarded as yet another kind of force?
gravitational force
electrostatic force
centripetal force
magnetic force
Centripetal force
Which of the following are non-contact forces?
Magnetic force, Frictional force, Gravitational force, Electrostatic force.
Which of the following is not a no-contact force ? (a) electrostatic force (b) gravitational force (c) frictional force (d) magnetic force