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Free Online Mock Physics Multiple Choice Test on Threedimensions Motion
Sub Category : Threedimensions Motion Test : 1 Time Left :
1) An aeroplane flying at a constant speed releases a bomb. As the bomb moves away from the aeroplane, it will (1) always be vertically below the aeroplane only if the aeroplane was flying horizontally (2) always be vertically below the aeroplane only if the aeroplane was flying at an angle of 45 degree to the horizontal (3) always be vertically below the aeroplane (4) gradually fall behind the aeroplane if the aeroplane was flying horizontally
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2) A bullet is fired horizontally from a rifle at a distant target. Ignoring the effect of air resistance, which of the following is correct?Horizontal Acceleration 10 m s power of -2, 10 m s power of -2, 0 m s power of -2, 0 m s power of -2, Vertical Acceleration 10 m s power of -2, 0 m s power of -2, 10 m s power of -2, 0 m s power of -2
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3) Two bodies are projected at angles θ and (90 degree - θ) to the horizontal with the same speed. The ratio of their times of flight is(1) sin θ : 1 (2) cos θ : 1 (3) sin θ : cos θ (4) cos θ : sin θ
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4) In two bodies are projected at angles θ and (90 degree - θ) to the horizontal with the same speed. The ratio of their times of flight is the ratio of the horizontal ranges is(1) 1 : 1 (2) sin θ : cos θ (3) sin power of 2 θ : cos power of 2 θ (4) sin power of 3 θ : cos power of 3 θ
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5) In two bodies are projected at angles θ and (90 degree - θ) to the horizontal with the same speed. The ratio of their times of flight is the ratio of the maximum vertical heights is(1) 1 : 1 (2) sin θ : cos θ (3) sin power of 2 θ : cos power of 2 θ (4) 1 : 3
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