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2., 6. | Thepulleys and strings shown in the figure are smooth and, of negligible mass. For the system to remain in equilibrium,, , , , , , , , , , the angle 6 should be (2001S), (a) ©, 10, (b) 30°, 4:, (c) 45° oa, (d) 60° “nm ‘m", , 7. Astring of negligible mass going over a, clamped pulley ofmass m supports a block, of mass M as shown in the figure. The, force on the pulley by the clamp is given, by (2001S), , (a) V2 Mg (b) J2mg, (©) (M +my +n? g (d) J(M+m) +M g