Two blocks of mass M1 and M2 are connected by a massless string that passes over a massless pulley as shown in the figure. M1 has a mass of 2.25 kg and rests on an incline of θ1 = 75.5∘. M2 rests on an incline of θ2 = 35.5∘. Find the mass of block M2 so that the system is in equilibrium (i. e., not accelerating). All surfaces are frictionless. M2 = kg Figure is not to scale.