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(a) A particle is projected from a point on horizontal ground. (b) A plane is inclined at an angle tan^1 1/2 to the horizontal.
(2013)
(a) Two particles of masses 6 kg and 7 kg are connected by a light inextensible string passing over a smooth light fixed pulley which is fixed to the ceiling of a lift. (b) A light inextensible string passes over a smooth fixed pulley, under a movable
(a) A smooth sphere A, of mass 3m, moving with speed u, collides directly with a smooth sphere B, of mass 5m, which is at rest. (b) A ball is dropped on to a table and it rises after impact to one-quarter of the height of the fall.
(a) A rectangular block of wood of mass 20 kg and height 2 m floats in a liquid. The block experiences an upward force of 400d N, where d is the depth, in metres, of the bottom of the block below the surface. (b) A vertical rod BA, of length 4l, has
(a) Two forces 5 N and 12 N are inclined at an angle θ as shown in the diagram. (b) Two uniform rods AB and BC, of length 1 and weight W, are hinged at B and rest in equilibrium on a smooth horizontal plane.
