Distance covered by a freely falling body in 2 seconds will be
A. 4.9 m
B. 19.6 m
C. 39.2 m
D. 44.1 m
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Physics
What is the angle of projection for which the range and maximum height become equal ?
A. tan-1 ¼
B. tan-1 4
C. tan-1 ½
D. tan-1 2
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Taking off rocket can be explained by
A. 1st law of motion
B. 2nd law of motion
C. Law of conservation of momentum
D. law of conservation of energy
Taking off rocket can be explained by Read More »
What is the shape of velocity, time graph for constant acceleration ?
A. straight inclined line.
B. parabola
C. inclined curve
D. declined curve
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When car takes turn around a curve road, the passengers feel a force acting on them in a direction away from the center of the curve. It is due to
A. Centripetal force
B. Gravitational force
C. Their inertia
D. Centrifugal force
The collision between two bodies be elastic if bodies are
A. solid and soft
B. soft and elastic
C. solid and hard
D. hard and elastic
The collision between two bodies be elastic if bodies are Read More »
Which of the following pair has same direction always
A. force, displacement
B. force, velocity
C. force, acceleration
D. force, momentum
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The dimension of force is
A. MLT-2
B. ML2T-2
C. ML2T2
D. ML-2T-2
The dimension of force is Read More »
3rd law of motion explains
A. effect of force
B. existence of a force
C. existence of two forces
D. existence of pair of forces in nature
3rd law of motion explains Read More »