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Engineering Mechanics

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

ω.r
ω²/r
ω².r
ω/r

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Engineering Mechanics
If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is

g/2
g/4
None of these
g/3

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Engineering Mechanics
The slope on the road surface generally provided on the curves is known as

Angle of banking
None of these
Angle of friction
Angle of repose

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Engineering Mechanics
The velocity ratio for the third system of pulleys is

2n - 1
2n
n²
n

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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
a = r / α
a = α/ r
None of these

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Engineering Mechanics
The horizontal range of a projectile (R) is given by

R = u² sinα/g
R = u² cosα/g
R = u² sin2α/g
R = u² cos2α/g

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