Question

Find the angular momentum if postion vector is perpendicular with 30Ns Momentum of |τ|=0.5m

Answer 1

The angular momentum is $\bold L = \bold r \times \bold p$, and its absolute value is $L = |\bold r| |\bold p| \sin \theta$ , where $\theta$ is the angle between $\bold r$ and $\bold p$. Given that $\theta = 90^{\circ}$, $L = 0.5 m \cdot 30 N s \cdot 1 = 15 N \cdot m \cdot s$.