A disc of mass `m` and radius `R` rotating with angular speed `omega_(0)` is placed on a rough surface (co-officient of friction `=mu`). Then

A ring of mass m and radius R is placed on a rough horizontal surface (co-efficient of friction mu ) with velocity of C.M. v_(0) and angular speed (2V_(0))/(R ) as shown in figure. Initially the ring is rolling with slipping but attains pure rolling motion after some time t . Then

A hoop of radius r mass m rotating with an angular velocity omega_(0) is placed on a rough horizontal surface. The initial velocity of the centre of the hoop is zero. What will be the velocity of the centre of the hoop when it cases to slip ?

A hoop of radius r and mass m rotating with an angular velocity omega_0 is placed on a rough horizontal surface. The initial velocity of the centre of the hoop is zero. What will be the velocity of the centre of the hoop when it ceases ot slip?

A body of mass m and radius r is rotated with angular velocity omega as shown in the figure & kept on a surface that has sufficient friction then the body will move

A disc of mass M and radius R is rolling with angular speed omega on a horizontal plane. The magnitude of angular momentum of the disc about a point on ground along the line of motion of disc is :

A ring of radius R is first rotated with an angular velocity omega and then carefully placed on a rough horizontal surface. The coefficient of friction between the surface and the ring is mu . Time after which its angular speed is reduced to half is

A ring of radius R is rotating with an angular speed omega_0 about a horizontal axis. It is placed on a rough horizontal table. The coefficient of kinetic friction is mu_k . The time after it starts rolling is.

Find the angular momentum about the axis of rotation and kinetic energy. (a) A uniform circular disc of mass m and radius R rotating about its diameter with an angular speed omega . (b) A uniform square plate of mass m and edge L rotating about its diagonal with an angular speed omega .