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A ball is projected from a point on the ground at a distance of a from the foot of a vertical wall of height b, the velocity of projection being u at an angle 45° to the horizontal. (b) A particle is projected down an inclined plane with initial veloc
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(a) The diagram shows a light inextensible string having one end fixed, passing under a smooth movable pulley A of mass m kg and then over a fixed smooth light pulley B. (b) Particles of mass 2m and m are connected by a light inextensible string whic
(a) Three identical smooth spheres lie at rest on a smooth horizontal table with their centres in a straight line. (b) A smooth sphere A moving with speed u, collides with an identical smooth sphere B which is at rest.
(a) A particle of mass 5 kg is suspended from a fixed point by a light elastic string which hangs vertically. (b) A and B are two fixed pegs, A is 4 m vertically above B.
(a) One end of a uniform ladder, of weight W, rests against a rough vertical wall, and the other end rests on rough horizontal ground. The coefficient of friction at the ground is 1/4 and at the wall is 1/2. (b) Two equal uniform rods AB and BC smoot
