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Engineering Mechanics

Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion, at any instant is given by

ω.y
ω2/y
ω3.y
ω2.y

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Engineering Mechanics
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.)

h/4
h/2
h/3
h/6

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Engineering Mechanics
Concurrent forces are those forces whose lines of action

Meet at one point
Lie on the same line
None of these
Meet on the same plane

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Engineering Mechanics
The periodic time of a particle with simple harmonic motion is _________ proportional to the angular velocity.

None of these
Square root
Inversely
Directly

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Engineering Mechanics
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as

Newton's third law of motion
Newton's second law of motion
None of these
Newton's first law of motion

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

a = α/ r
None of these
a = r / α
a = α.r

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