Two identical spherical balls, each of mass m, are placed as shown in figure. Plot the variation of g(gravitation intensity) along the x-axis due to both the masses.

Options

A. 2
B. 3
C. `sqrt(2)`
D. `sqrt(3)`

Answer

D

Explanation

Net torque about O should be zero

`:. "Mg"(1)/(2)sin 30^(@)="mg"(1)/(2)sin 60^(@)`
`(M)/(m)=(sin 60^(@))/(sin 30^(@))=sqrt(3)`.