The two masses are joined by a string which passes over a pulley having negligible mass and friction. One mass suspends vertically and one mass slides on a frictionless 35.0 degrees incline. The vertically suspending mass is 7.15 kg and the mass on the incline is 4.20 kg (i) sketch a complete FBD diagram for 2 masses. (ii) Determine the acceleration of 4.20 kg mass?