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Engineering Mechanics

Engineering Mechanics
The time of flight (t) of a projectile on a horizontal plane is given by

t = 2u. cosα/g
t = 2u. tanα/g
t = 2u/g.sinα
t = 2u. sinα/g

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Engineering Mechanics
The velocity of a particle (v) moving with simple harmonic motion, at any instant is given by (where, r = Amplitude of motion, and y = Displacement of the particle from mean position.)

ω.√(r² - y²)
ω².√(r² - y²)
ω².√(y² - r²)
ω.√(y² - r²)

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

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

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Engineering Mechanics
The velocity ratio in case of an inclined plane inclined at angle 'θ' to the horizontal and weight being pulled up the inclined plane by vertical effort is

tanθ
cosθ
sinθ
cosecθ

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Engineering Mechanics
When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.

Inward
Towards front
Outward
Towards back

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Engineering Mechanics
The unit of work in S.I. units is

Newton
kg-m
erg
joule

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MORE MCQ ON Engineering Mechanics

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