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9. In the diagram given below 0X, OY are two mutuaily perpendicular lines that make up a coordinate system with origin 0. A particle P of mam 120 kg is located at the origin of the coordinate system, that is, EPIC = Q, and a particle Q of mass 400 kg is located at the point two = {16 m, 12 111,0) with respect to the origin of the coordinate system. (The diagram is not to scale.) O P X The gravitational force (expressed in terms of the gravitational constant G) acting on particle P due to particle Q is: (a) sin = G