Question
Define angular acceleration. Prove that the linear motion of a particle moving in a circular path of fixed radius. The following relationship exists between acceleration $\vec{a}$, angular acceleration $\vec{\alpha}$ and radius vector $\overrightarrow{ R. }$
$\vec{a}=\vec{\alpha} \times \overrightarrow{ R }
$.
$\vec{a}=\vec{\alpha} \times \overrightarrow{ R }
$.
