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A particle is projected from a horizontal surface with a velocity of \\( 20 \\mathrm{~m} / \\mathrm...
A particle is projected from a horizontal surface with a velocity of ( 20 mathrm{~m} / mathrm{s} ) at an angle of ( 60^{circ} ) with the horizontal. When it hits the horizontal surface, its velocity makes an angle of ( 30^{circ} ) with the horizontal. Apart from gravity, a horizontal force acts on the particle during the motion. The speed of ...
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