Question

The distance of the centre of mass of a hemispherical shell of radius $R$ from its centre is

• A. $\frac{\text{R}}{2}$
• B. $\frac{\text{R}}{3}$
• C. $\frac{\text{2R}}{2}$
• D. $\frac{\text{2R}}{3}$

Answer 1

Answer: (A)

Centre of mass of a hemispherical shell of radius $R$ lies at a distance of $h = \frac{\text{R}}{2}$ from its centre on the axis of symmetry as shown in figure.