The potential energy of a two particle system separated by a distance `r` is given by `U(r ) =A/r` where A is a constant. Find to the radial force `F_(r)`, that each particle exerts on the other.

The gravitational force between two particles separated by a distance r varies as ……………

The potential energy function of a particle is given by U(r)=A/(2r^(2))-B/(3r) , where A and B are constant and r is the radial distance from the centre of the force. Choose the correct option (s)

The potential energy function of a particle is given by U(r)=A/(2r^(2))-B/(3r) , where A and B are constant and r is the radial distance from the centre of the force. Choose the correct option (s)