Question

Question #5a15b

Answer 1

Answer : The SI unit for angular momentum is `\quad kg.m^2.s^{-1}` and its dimension is `M.L^2.T^{-1}`.

Explanation : Angular Momentum is the rotational motion equivalent of the Linear Momentum of Translational motion. It is defined as the moment of Linear Momentum.

`\vec{L} \equiv \vec{r}\times\vec{p}= \vec{r}\timesm\vec{v}`

`L = r.mv.\sin\theta; \qquad \sin\theta` is a unitless quantity.
SI units for `m, r` and `v` are, respectively, `kg`, `m` and `m.s^{-1}`.