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Engineering Mechanics

Engineering Mechanics
The velocity ratio of a first system of pulleys with 4 pulleys is

8
4
16
20

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Engineering Mechanics
If u₁ and u₂ are the velocities of two moving bodies in the same direction before impact and v₁ and v₂ are their velocities after impact, then coefficient of restitution is given by

(v₂ - v₁)/(u₁ - u₂)
(v₁ - v₂)/(u₁ - u₂)
(u₁ - u₂)/(v₁ - v₂)
(u₂ + u₁)/(v₂ + v₁)

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

π/ω
2π/ω
ω/2π
2π × ω

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

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

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Engineering Mechanics
A couple produces

None of these
Combined translatory and rotational motion
Translatory motion
Rotational motion

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Engineering Mechanics
The moment of inertia of a solid sphere of mass ‘m’ and radius ‘r’ is

mr²/2
mr²
2mr²/3
2mr²/5

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MORE MCQ ON Engineering Mechanics

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