The mass, m 3.0 kg slides on a frictionless surface inclined at an angle, a with the horizontal as shown in Figure Q3(a). If P- 50N, the mass, m2=2.0 kg has an upward acceleration of 2.5 m/s. Estimate the angle, a if the pulley has negligible mass and friction. 4- 222- Thi Figure Q3(a) (5 marks) The mass, m 3.0 kg slides on a frictionless surface inclined at an angle, a with the horizontal as shown in Figure Q3(a). If P- 50N, the mass, m2=2.0 kg has an upward acceleration of 2.5 m/s. Estimate the angle, a if the pulley has negligible mass and friction. 4- 222- Thi Figure Q3(a) (5 marks)