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Q2. A block of mass 4 kg rests on a horizontal plane and a second block of mass 6 kg rests on a plane incline at 25° to the horizontal. The blocks are connected together by a light inextensible wire passing under pulley as shows in Fig Q2.

The blocks are further connected by a light inextensible wire and pulley to a deadweight W which is sufficient to move the system with a constant velocity. The coefficient of friction between both blocks and the planes is 0.2 and the friction in the pulleys is negligible.

(a) Sketch the system showing all the forces acting for steady motion. (6)

(b) Calculate the magnitude of the mass required at the deadweight W. (10)