Angular Momentum of a Particle: Definition and Relation to Torque

This content defines angular momentum (ℓ) for a particle as the cross product of its position vector (r) and linear momentum (p), i.e., ℓ=r×p=m(r×v). It clarifies that angular momentum is a vector quantity defined with respect to a specific reference point and introduces alternative formulations using the perpendicular components of momentum or the moment arm. The lesson concludes by presenting Newton's Second Law in its angular form, τnet​=dℓ/dt, establishing the direct relationship between net torque and the rate of change of angular momentum.