Q. 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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Q. If a number of forces are acting at a point, theirresultant will be inclined at an angle θ with the horizontal, such that

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Q. A resultant force is a single force which produces the same effect as produced by all the given forces acting on a body.

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Q. When a rigid body is suspended vertically, and it oscillates with a small amplitude under the action of the force of gravity, the body is known as

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Q. If two blocks of equal mass are attached to the two ends of a light string and one of the blocks is placed over a smooth horizontal plane while the other is hung freely after passing over a smooth pulley, then the two blocks will have some motion.

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Q. During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.

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Q. 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.

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Q. 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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Q. The frequency of oscillation of a torsional pendulum is

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Q. The range of a projectile is maximum, when the angle of projection is

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Q. 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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Q. The friction experienced by a body, when in motion, is known as

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Q. 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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Q. 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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Q. The coefficient of restitution for elastic bodies is one.

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Q. A smooth cylinder lying on its convex surface remains in __________ equilibrium.

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Q. Coefficient of friction is the ratio of the limiting friction to the normal reaction between the two bodies.

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Q. Moment of inertia of a circular section about an axis perpendicular to the section is

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Q. The unit of angular acceleration is

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Q. Concurrent forces are those forces whose lines of action

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