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Engineering Mechanics

Engineering Mechanics
Moment of inertia of a circular section about its diameter (d) is

πd3/16
πd4/64
πd4/32
πd3/32

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Engineering Mechanics
The linear velocity of a body rotating at ω rad/s along a circular path of radius r is given by

ω².r
ω/r
ω²/r
ω.r

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Engineering Mechanics
The bodies which rebound after impact are called

None of these
Neither elastic nor inelastic bodies
Elastic bodies
Inelastic bodies

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Engineering Mechanics
Static friction is always __________ dynamic friction.

Equal to
Greater than
Less than
None of these

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Engineering Mechanics
The range of projectile (R) on an upward inclined plane is

2u². sin (α - β). cos α/g. cos² β
g. cos² β/2u². sin (α + β). cos α
2u². sin (α + β). cos α/g. cos² β
g. cos² β/2u². sin (α - β). cos α

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Engineering Mechanics
When a body of mass moment of inertia 'I' (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is

0.5 Iω2
Iω2
Iω
0.5 Iω

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