One end of massless inextensible string of length `l` is fixed and other end is tied to a small ball of mass `m`. The ball is performing a circular motion in vertical plane. At the lowest position, speed of ball is `sqrt(20gl)`. Neglect any other forces on the ball except tension and gravitational force. Acceleration due to gravity is `g`.
Motion of ball is in nature of

One end of massless inextensible string of length l is fixed and other end is tied to a small ball of mass m . The ball is performing a circular motion in vertical plane. At the lowest position, speed of ball is sqrt(20gl) . Neglect any other forces on the ball except tension and gravitational force. Acceleration due to gravity is g . At the highest position of ball, tangential acceleration of ball is -

One end of massless inextensible string of length l is fixed and other end is tied to a small ball of mass m . The ball is performing a circular motion in vertical plane. At the lowest position, speed of ball is sqrt(20gl) . Neglect any other forces on the ball except tension and gravitational force. Acceleration due to gravity is g . At the highest position of ball, tangential acceleration of ball is -

One end of massless inextensible string of length l is fixed and other end is tied to a small ball of mass m . The ball is performing a circular motion in vertical plane. At the lowest position, speed of ball is sqrt(20gl) . Neglect any other forces on the ball except tension and gravitational force. Acceleration due to gravity is g . During circular motion, minimum value of tension in the string -

One end of massless inextensible string of length l is fixed and other end is tied to a small ball of mass m . The ball is performing a circular motion in vertical plane. At the lowest position, speed of ball is sqrt(20gl) . Neglect any other forces on the ball except tension and gravitational force. Acceleration due to gravity is g . During circular motion, minimum value of tension in the string -

In the figure shown, a small ball of mass 'm' can move witgout sliding in a fixed semicircular track of radius R in vertical planet. It is released from the top. The resultant force on the ball at the lowest of the track is

In the figure shown, a small ball of mass 'm' can move witgout sliding in a fixed semicircular track of radius R in vertical planet. It is released from the top. The resultant force on the ball at the lowest of the track is

A simple pendulum consisting of a ball of mass m tied to a thread of length l is made to swing on a circular arc of angle q in a vertical plane. At the end of this arc, another ball of mass m is placed at rest. The momentum transferred to this ball at rest by the swinging ball is