Question

What will be the position of centre of mass of a half disc of uniform mass density as shown

• A. $\frac{2a}{Ï€}$
• B. $\frac{4a}{3Ï€}$
• C. $\frac{a}{Ï€}$
• D. $\frac{2a}{3Ï€}$

Answer 1

Answer: (B)

Fact that C.O.M. of hait disk is at distance of $\frac{4a}{3Ï€}$ from center.