Question

A hollow sphere of mass $'M'$ and radius $'R'$ is rolling on horizontal surface with speed $'V'$ . Find the angular momentum of sphere about point of contact on surface.

• A. $\frac{2}{3}MVR$
• B. $\frac{5}{3}MVR$
• C. $\frac{7}{3}MVR$
• D. $\frac{7}{5}MVR$

Answer 1

Answer: (B)

$L=MVR+\left(\frac{2}{3} \left(MR\right)^{2}\right)\left(\frac{V}{R}\right)$

$=\frac{5}{3}MVR$