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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
When a body falls freely under gravitational force, it possesses __________ weight.

Maximum
None of these
No
Minimum

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Engineering Mechanics
The unit of moment of inertia of an area is

kg/m2
kg-m-s2
m4
kg-m2

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Engineering Mechanics
If ‘P’ is the force acting on the body, ‘m’ is the mass of the body and ‘a’ is the acceleration of the body, then according to Newton's second law of motion,

P/m.a = 0
P - m.a = 0
P + m.a = 0
P × m.a = 0

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

Curved surface
Horizontal surface
Convex surface
None of these

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Engineering Mechanics
The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is

mr²/4
mr²/2
mr²/8
mr²/6

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