Q7.7Multiple choice
The density of a non-uniform rod of length 1m is given by ρ (x) = a(1+bx 2) where a and b are constants and o ≤ x ≤ 1 . The centre of mass of the rod will be at 3(2 + b )
- (a)4 (3 + b ) 4 (2 + b )
- (b)3(3 + b ) 3(3 + b )
- (c)4 (2 + b ) 4 (3 + b )
- (d)3(2 + b )