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(a) A particle is projected from a point P with speed 60 m s–1 at an angle of 30° to the horizontal. (b) A plane is inclined at an angle of 30° to the horizontal.
(2018)
(a) A block A of mass m is connected by a light inextensible string to a second block B of mass 3 kg. (b) A moveable pulley of mass m is suspended on a light inextensible string between two fixed pulleys as shown in the diagram.
(a) Three identical small smooth spheres A, B and C, each of mass m, lie in a straight line on a smooth horizontal surface with B between A and C. (b) A small smooth sphere P, of mass 2m, moving with speed 4u, collides obliquely with an equal smooth
(a) Two points A and B are 6 m apart on a smooth horizontal surface. (b) A particle P is attached to one end of a light inextensible string of length d.
(a) One end of a uniform ladder, of weight W and length ݈, rests against a rough vertical wall, and the other end rests on a rough horizontal floor. (b) Two equal uniform rods, AB and BC, smoothly jointed at B, are in equilibrium with the end C resting
