Question

show that dl/dt = τ where l is the angular moment and τ is the torque​

Answer 1

Explanation:

I = MVR = momentum × perpendicular distance

dI/dt = d(MVR)/dt

dI/dt = (MR) d(V)/dt

dI/dt = (MR) (a) ( a = acceleration)

dI/dt = (Ma)(R)

dI/dt = F R

dI/ dt = τ

because τ = Force × perpendicular distance