The rate of change of total momentum of a many-particle system is proportional to the external force/sum of the internal forces on the system.

Show that the rate of change of angular momentum is proportional to the extrnal torque.

Show the rate of change of angular momentum of a particle is equal to the torque acting on it.

Express angular momentum of a system of particles in term of M.I.

Show that the total linear momentum of a system of particles is equal to the product of the total mass of the system and the velocity of its centre of mass.

What will be the change in internal energy of a system if no work is done on the system but q amount of heat is taken out from the system and given to the surroundings.

Two particles, each of mass m and speed v_3 travel in opposite directions along parallel lines separated by a distance d. Show that the vector angular momentum of the two particle system is the same whatever be the point about which the angular momentum is taken.

The change in internaL energy of a system depends on

Can momentum of a system be changed without changing its K.E.?

A body constrained to move along the z-axis of a coordinate system is subject to a constant force F given by F=-hati+2hatj+3hatk N where hatihatjhatk are unit vectors along the x-, y- and z-axis of the system respectively. What is the work done by this force in moving the body a distance of 4 m along the z-axis?

An electric heater supplies heat to a system at a rate of 100W. If system performs work at a rate of 75 Joules per second. At what rate is the internal energy increasing