a positive test charge is used to explore the field of asingle positive point charge Q at P(a,b,c). if the test charge isplaced at the origin, the force on it is in the direction0.5ax-0.5sqr(3ay), and when the test charge is moved to (1,0,0),the force is in the direction of 0.6ax-0.8ay. find a,b, and c