The movement of a body about its own axis like a rotating top is linear motion.

A uniform rod of mass 300 g and length 50 cm rotates at a uniform angular speed of 2 rad/s about an axis perpendicular to the rod through an end. Calculate a. the angular momentum of the rod about the axis of rotation b. its kinetic energy.

Calculate the ratio of the angular momentum of the earth about its axis due to its spinning motion to that about the sun due to its orbital motion. Radius of the earth =6400 km and radius of the orbit of the earth about the sun =1.5xx10^8km.

The moment of the external applied force about a point or axis of rotation is known as

It I is the moment of inertia of a distance about an axis passing through its centre the find the change in moment of inertia due to small change in its temperature Delta t alpha is the Coefficient of linear expeansion of distance .

A body of mass 50 g is revolvig about an axis in a circular path. The distance of the centre of mass of the body from the axis of rotation is 50 cm. Find the moment of inertia of the body.

A wheel having moment of inertia 2 kg m^2 about its axis, rotates at 50 rpm about this axis. Find the torque that can stop the wheel in one minute.

Consider a non conducting plate of radius a and mass m which has a charge q distributed uniformly over it, The plate is rotated about its own axis with a angular speed omega . Show that the magnetic moment M and the angular momentum L of the plate are related as (M)/(L)=(q)/(2m) .

Spinning of the Earth about its own axis is known as .............. motion.