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A binary star consists of two stars A(mass 2.2 M_s) and B (mass 11 M_s) where M_s is the mass of the sun, they are separted by distane d and are rotating about their center of mass, which is stationary. The ratio of the total angular momentum of the binary to the angular momentum of star B about the centre of mass is
A satellite of mass m orbits around the Earth of mas M in an elliptical orbit of semi - major and semi - minor axes 2a and a respectively. The angular momentum of the satellite about the centre of the Earth is
A thin ring of mass m and radius R is in pure rolling over a horizontal surface. If v_0 is the velocity of the centre of mass of the ring, then the angular momentum of the ring about the point of contact is
A sphere of mass M rolls without slipping on rough surface with centre of mass has constant speed v_0 . If mass of the sphere is m and its radius be R , then the angular momentum of the sphere about the point of contact is.
The rate of change of angular momentum of a system of particles about the centre of mass is equal to the sum of external torque about the centre of mass when the centre of mass is :
A uniform stick of length l and mass m lies on a smooth table. It rotates with angular velocity omega about an axis perpendicular to the table and through one end of the stick. The angular momentum of the stick about the end is
A satellite of mass m is circulating around the earth with constant angular velocity. If the radius is R_(0) and mass of earth is M, then the angular momentum about the centre of the earth is
The angular momentum of the atom will be constant about an axis passing through
