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(a) A particle is projected with a speed of 98 m/s at an angle α to the horizontal (b) A particle is projected down an inclined plane with initial velocity 20 m/s.
(2012)
(a) Two particles A and B each of mass m are connected by a light inextensible string passing over a light, smooth, fixed pulley. (b) Two particles of mass m kg and 2m kg lie at rest on horizontal rough tables.
(a) Three smooth spheres, A, B and C, of mass 3m, 2m and m lie at rest on a smooth horizontal table with their centres in a straight line.(b) A smooth sphere P collides with an identical smooth sphere Q which is at rest.
(a) A particle of mass 0·5 kg is suspended from a fixed point P by a spring which executes simple harmonic motion with amplitude 0·2 m. (b) A particle of mass m kg lies on the top of a smooth fixed sphere of radius 30 cm.
(a) A uniform wire ABC is bent at right angles at B. When it is suspended from B the parts AB and BC make angles of 30˚ and 60˚ respectively with the vertical. (b) Two rough rings of equal weight W are a distance d apart on a horizontal rod.
