System of Particles and Rotational Motion.

13 lessons132 min11 simulations10 practice questions

Real bodies have size, and they turn as well as move. This chapter treats an extended body as a system of particles: it locates the centre of mass and shows that it moves as if all the mass and all the external force were there, then builds rotation about a fixed axis step by step, from angular velocity and the vector product to torque, angular momentum, equilibrium, moment of inertia, the rotational equations of motion and the conservation of angular momentum.

Also called: rotational dynamics · rotational motion · moment of inertia · torque and angular momentum · centre of mass