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Engineering Mechanics

Engineering Mechanics
The periodic time (T) is given by (where, ω = Angular velocity of particle in rad/s.)

2π/ω
2π × ω
ω/2π
π/ω

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

πd3/16
πd3/32
πd4/64
πd4/32

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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 maximum height of a projectile on a horizontal plane, is

u² sin²α/g
u² cos²α/g
u² sin²α/2g
u² cos²α/2g

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Engineering Mechanics
When a body of mass 'm' attains a velocity 'v' from rest in time 't', then the kinetic energy of translation is

0.5 mgv2
mgv2
mv2
0.5 mv2

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

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

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