Q. In collision of elastic bodies, the coefficient of restitution is the ratio of the relative velocity after impact to the relative velocity before impact.

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Q. The acceleration of a particle moving with simple harmonic motion is proportional to the displacement of the particle from the mean position.

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Q. The unit of moment of inertia of an area is

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Q. A pendulum which executes one beat per second is known as

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Q. D' Alembert's principle basically depends upon Newton's second law of motion.

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Q. The forces, whose lines of action are parallel to each other and act in the same directions, are known as

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Q. A number of forces acting at a point will be in equilibrium, if

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Q. The kinetic energy of a body __________ upon its mass and velocity.

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Q. According to Newton's first law of motion,

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Q. The moment of inertia of a square of side (a) about an axis through its centre of gravity is

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Q. The velocity ratio of a single purchase crab winch can be increased by

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Q. The motion of a wheel of a car is

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Q. For any system of coplaner forces, the condition of equilibrium is that the

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Q. The ratio of static friction to dynamic friction is always

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Q. A science teacher claimed that Newton's third law of motion is involved while studying the motion of rockets. His statement is

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Q. One kg force is equal to

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Q. Coefficient of friction depends upon

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Q. Which of the following statement is correct?

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Q. The velocity ratio of a differential wheel and axle with D as the diameter of effort wheel and d1,and d2 as the diameters of larger and smaller axles respectively, is

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Q. When a body of mass moment of inertia I (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is

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