Find the force of attraction on a particle of mass m placed at the centre of a quarter ring of mass mand radius R as shown in figure.

" The force of attraction on a particle of mass "m" placed at the centre of curvature of a semicircular wire of length L and mass "M" is "

For a uniform ring of mass M and radius R at its centre

For a uniform ring of mass M and radius R at its centre

The escape velocity form the centre of a unifrom ring of mass M and radius R is :

A point particle of mass m is released from a distance sqrt(3)R along the axis of a fixed ring of mass M and radius R as shown in figure. Find the speed of particle as it passes through the centre of the ring.

A point particle of mass m is released from a distance sqrt(3)R along the axis of a fixed ring of mass M and radius R as shown in figure. Find the speed of particle as it passes through the centre of the ring.

Find the force of attraction between a solid sphere of mass M and a ring of mass m as shown.

A mass m is placed at P a distance h along the normal through the centre O of a this circular ring of mass M and radius r (shown in the figure) If the mass is removed further away such that OP becomes 2h, by what factor the force of gravitation will decrease, If h = r?

A particle of mass m is placed on centre of curvature of a fixed, uniform semi-circular ring of radius R and mass M as shown in figure. Calculate: (a) interaction force between the ring and the particle and (b) work required to displace the particle from centre of curvature to infinity.

A particle of mass m is placed at a distance R from centre of a uniformly dense thin ring of mass m rand radius R on a axis passing through its centre and perpendicular to its plane. Find the speed of the particle when it reaches at the centre fo the ring due to their mutual gravitation force.