One end of a helical spring is fixed while the other end carries the load W whic

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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 ? = Deflection of the spring.)
Options
A.
B.
C.
D.

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4. 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.)
Options
A. h/2
B. h/3
C. h/4
D. h/6

6. Varingon's theorem of moments states that if a number of coplaner forces acting on a particle are in equilibrium, then
Options
A. their algebraic sum is zero
B. their lines of action are at equal distances
C. the algebraic sum of their moments about any point in their plane is zero
D. the algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point.

10. 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.)
Options
A.
B.
C.
D.

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