A ball is placed on a smooth chute inclined at an angle `alpha = 30^(@)` to the horizontal and rotating at frequency n=30 rpm about a vertical axis passing through its lower end. At what distance from the end of the chute does the ball rest ?

A ball is placed on a smooth inclined plane of inclination theta=30^(@) to the horizontal, which is rotating at frequency 0.5 Hz about a vertical axiz passing through its lower end. At what distance from the lower end does the ball remain at rest?

A horizontal disc is rotating about a vertical axis passing through its centre. If an insect moves from centre to rim then the angular momentum of the system

A horizontal disc is rotating about a vertical axis passing through its centre. If an insect moves from centre to rim then the angular momentum of the system

A uniform metal rod is rotated in horizontal plane about a vertical axis passing through its end at uniform rate. The tension in the rod is

A uniform rod of mass m and length l rotates in a horizontal plane with an angular velocity omega about a vertical axis passing through one end. The tension in the rod at a distance x from the axis is

A ball starts falling with zero initial velocity on a smooth inclined plane forming an angle alpha with the horizontal. Having fallen the distance h, the ball rebounds elastically off the inclined plane. At what distance from the impact point will the ball rebound for the second time?

A ball starts falling with zero initial velocity on to a smooth inclined plane forming an angle alpha with the horizontal. Having fallen a distance h, the ball rebounds elastically off the inclined plane. At what distance from the impact point will the ball rebound for the second time ?

A ball starts falling with zero initial velocity on to a smooth inclined plane forming an angle alpha with the horizontal. Having fallen a distance h, the ball rebounds elastically off the inclined plane . At what distance from the impact point will the ball rebound for the second time ?

Two balls of masses m_(1) = 0.5 kg and m_(2) = 0.3 kg are connected by a nonstretchable string and slipped on to a horizontal , light rod. The rod is rotated with omega = 110 rpm about a vertical axis passing through its centre. Find the tension of the string and the distance of the masses from the axis of rotation if l=20 cm is the length of the string. Is the equilibrium of the balls stable ?

A uniform rod is fixed to a rotating turntable so that its lower end is on the axis of the turntable and it makes an angle of 20 % to the vertical. (The rod is thus rotating with uniform angular velocity about a vertical axis passing through one end.) If the turntable is rotating clockwise as seen from above. . Is there a torque acts on it, and it so in what direction ?