Q. The acceleration of a particle moving with simple harmonic motion is __________ at themean position.

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Q. The velocity of a particle moving with simple harmonic motion is __________ at the mean position.

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Q. A framed structure is imperfect, if the number of members are __________ (2j - 3).

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Q. The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of α rad / s², is

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Q. The total energy possessed by a system of moving bodies

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Q. The polygon law of forces states that if a number of forces, acting simultaneously on a particle, be represented in magnitude and direction by the sides a polygon taken in order, then their resultant is represented in magnitude and direction by the closing side of the polygon, taken in opposite direction.

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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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