Q. A smooth cylinder lying on a __________ is in neutral equilibrium.

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Q. The velocity of a particle (v) moving with simple harmonic motion, at any instant is given by(where r = Amplitude of motion, and y = Displacement of the particle from mean position.)

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Q. Varingon's theorem of moments states that if a number of coplaner forces acting on a particle are in equilibrium, then

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Q. The loss of kinetic energy during inelastic impact, is given by(where m1 = Mass of the first body,m2 = Mass of the second body, and u1 and u2 = Velocities of the first and second bodies respectively.)

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Q. The centre of gravity of a hemisphere lies at a distance of 3r / 8 from its base measured along the vertical radius.

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Q. Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the depth (d), is

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Q. The centre of oscillation and centre of suspension for a compound pendulum are interchangeable.

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Q. In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.

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Q. The unit of work in S.I. units is

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Q. The static friction

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Q. The maximum height of a projectile on a horizontal plane, is

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Q. If the body falls freely under gravity, then the gravitational acceleration is taken as

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Q. The rate of change of displacement of a body is called

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Q. The efficiency of a screw jack is maximum, when(where α = Helix angle, and φ = Angle of friction.)

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Q. The periodic time (T) is given by(where ω = Angular velocity of particle in rad / s.)

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Q. One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by(where δ = Deflection of the spring.)

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Q. The angle of inclination with the vertical is __________ if the cyclist is running at a faster speed than that when he is running at a slower speed.

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Q. The range of projectile(R) on an upward inclined plane is

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Q. The centre of gravity of a right circular solid cone is at a distance of __________ from its base, measured along the vertical axis.(where h = Height of a right circular solid cone.)

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Q. In actual machines, mechanical advantage is __________ velocity ratio.

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