Centre of mass of a se

Question

Centre of mass of a semicircular plate of radius R , the density of which linearly varies with distance , d at centre to a value 2d at circumference is

Options:

A . 3R/`pi` from certre

B . 4R/2`pi` from certre

C . 5R/`pi` from certre

D . 7R/5`pi` from certre

Answer: Option D

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