An insect of mass `m=3kg` is inside a vertical drum of radius `2m` that is rotating with an angular velocity of `5rads^(-1)` . The insect doesn't fall off. Then, the minimum coefficient of friction required is

A body of mass 5 kg is moving in a circle of radius m 1 with an angular velocity of 2 radian/sec . The centripetal force is

A coin is placed at the edge of a horizontal disc rotating about a vertical axis through its axis with a uniform angular speed 2 rad s^(-1) . The radius of the disc is 50 cm. Find the minimum coefficient of friction between disc and coin so that the coin does not slip. (Take g = 10 m//s^(2) )

A soild cylinder of mass 2 kg and radius 0.2 m is rotating about its owm axis without friction with an angular velocity of 3 rad s^(-1) . Angular momentum of the cylinder is

A soild cylinder of mass 2 kg and radius 0.2 m is rotating about its owm axis without friction with an angular velocity of 3 rad s^(-1) . Angular momentum of the cylinder is

A disc of mass 2 kg and radius 0.2 m is rotating with angular velocity 30 "rad s"^(-1) . What is angular velocity, if a mass of 0.25 kg is put on periphery of the disc ?

A thin circular disc of mass 12 kg and radius 0.5 m rotates with an angular velocity of 100 rad/s. The rotational kinetic energy of the disc is

A disc of mass 1 kg and radius 0.1 m is rotating with angular velocity "20 rad s"^(-1) . What is angular velocity, if a mass of 0.25 kg is put on periphery of the disc?

A disc of mass 2 kg and radius 0.2 m is rotating with angular veocity "30 rad s"^(-1) . What is angular velocity, if a mass of 0.25 kg is put on periphery of the disc?