A ring of radius `R` is rolling purely on the outer surface of a pipe of radius `4R`. At some instant, the center of the ring has constant speed `v`. Then the acceleration of the point on the ring which is in contact with the surface of the pipe is

A convex surface has a uniform radius of curvature equal to 5R. A wheel of radius R is rolling without sliding on it with a constant speed v . Find the acceleration of the point (P) of the wheel which is in contact with the convex surface.

A thin ring of mass m and radius R is in pure rolling over a horizontal surface. If v_0 is the velocity of the centre of mass of the ring, then the angular momentum of the ring about the point of contact is

A ring of radius R rolls on a horizontal surface with constant acceleration a of the centre of mass as shown in figure. If omega is the instantaneous angular velocity of the ring. Then the net acceleration of the point of contact of the ring with gound is

A ring of mass m and radius R has four particles each of mass m attached to the ring as shown in figure. The centre of ring has a speed v_(0). The kinetic energy of the system is

A ring of radius R has charge -Q distributed uniformly over it. Calculate the charge that should be placed at the center of the ring such that the electric field becomes zero at apoint on the axis of the ring at distant R from the center of the ring.

Potential on the axis of ring of radius 3R and at distance 4R from centre of ring is (charge on the ring is Q )

A charge q_0 is distributed uniformly on a ring of radius R. A sphere of equal radius R constructed with its centre on the circumference of the ring. Find the electric flux through the surface of the sphere.

A ring of radius R is rotating about axis of ring such that angular velocity is given as = 5t. Find acceleration of a point P on rim after 5 sec