In figure, a sphere of radius $2 \mathrm{~m}$ rolls on a plank. The accelerations of the sphere and the plank are indicated. Find the value of $\alpha$ in $\mathrm{rad} / \mathrm{s}^{2}$.

Question

Aicharya · Accepted Answer

Acceleration of point A must be equal to the acceleration of the plank due to pure rolling.
$\begin{array}{l}
a_{r}-a_{2}=a_{1} \\
a(2)-4=2 \Longrightarrow a=3 \mathrm{rad} / \mathrm{s}^{2}
\end{array}$

In figure, a sphere of radius \(2 \mathrm{~m}\) rolls on a plank. The accelerations of the sphere and the…

Solution