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Engineering Mechanics

Engineering Mechanics
The angle between two forces when the resultant is maximum and minimum respectively are

0° and 180°
90° and 180°
180° and 0°
90° and 0°

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Engineering Mechanics
Which of the following is an equation of linear motion?(where, u and v = Initial and final velocity of the body, a = Acceleration of the body, and s = Displacement of the body in time t seconds.)

v = u + a.t
v2 = u2 + 2a.s
s = u.t + ½ a.t2
All of these

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Engineering Mechanics
On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be

Away from the wall at its upper end
Towards the wall at its upper end
Upwards at its upper end
Downwards at its upper end

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Engineering Mechanics
The coefficient of restitution for inelastic bodies is

One
Zero
More than one
Between zero and one

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Engineering Mechanics
The moment of inertia of a square of side a about its diagonal is

a⁴/12
a²/8
a⁴/16
a³/12

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Engineering Mechanics
Mass moment of inertia of a uniform thin rod of mass M and length (l) about its mid-point and perpendicular to its length is

(3/4) Ml²
(1/3) Ml²
(1/12) Ml²
(2/3) Ml²

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