Physics Question

7. The following 3 forces are acting on a object (see the figure below) and the object is under equilibrium (no net force). What is the Magnitude of F3 and the angle of 0? 260 8. Two blocks of m1 = 15 kg and m2 =9 kg are sliding down an inclined surface together (see the figure at below). (a) if the surface is frictionless, what is the force between m1 and m2? (b) if the coefficient of kinetic friction between the surface and both mi and m2 are equal and the value is H1 = H2 =0.25 what is the force between mi and m2? (c) what would the force between m1 and m2 be if 1 = 0.15 and M2 =0.25? Mi= 15kg M2= 9 kg