Mass m_{1} moves on a slope making an angle θ with the horizontal and is attached to mass m_{2} by a string passing over a frictionless pulley as shown in Fig. 5.2. The co-efficient of friction between m_{1} and the sloping surface is μ.Which of the following statements are true?

(a) If m_{2} > m_{1} sinθ , the body will move up the plane.

(b) If m_{2} >m_{1} sinθ + μ cosθ , the body will move up the plane.

(c) If m_{2} < m_{1} sinθ + μ cosθ , the body will move up the plane.

(d) If m_{2} < m_{1} sinθ − μ cosθ , the body will move down the plane.