1. According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction. | ||||
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Answer: Option B
2.The Friction experienced by a body, when in motion, is known as | ||||||||
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Answer: Option B
3. Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the ball with velocity v is made to struck the second ball. Both the balls after impact will move with a velocity | ||||||||
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Answer: Option B
4. The term 'force' may be defined as an agent which produces or tends to produce, destroys or tends to destroy motion. | ||||
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Answer: Option A
5. The force required to move the body up the plane will be minimum if it makes an angle with the Inclined Plane __________ the angle of friction. | ||||||
Answer: Option A |
6. The total time taken by a projectile to reach maximum height and to return back to the ground, is known as time of flight. | ||||
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Answer: Option A
7.The range of a projectile is maximum, when the angle of projection is | ||||||||
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Answer: Option B
8. Which of the following is an equation of linear motion?(where, u and v = Initial and final velocity of the body, a = Acceleration of the body, and s = Displacement of the body in time t seconds.) | ||||||||
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Answer: Option D
9. If a number of forces are acting at a point, their resultant will be inclined at an angle θ with the horizontal, such that | ||||||||
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Answer: Option B
10.A smooth cylinder lying on its convex surface remains in __________ equilibrium. | ||||||||||||||||||||||
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13.The unit of angular acceleration is | ||||||||||||||||||||||
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Answer: Option D
14.The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is | ||||||||
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Answer: Option A
15. The range of projectile on a downward inclined plane is __________ the range on upward inclined plane for the same velocity of projection and angle of projection. | ||||||
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