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Engineering Mechanics

Engineering Mechanics
The centre of gravity a T-section 100 mm × 150 mm × 50 mm from its bottom is

125 mm
75 mm
87.5 mm
50 mm

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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.)

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

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Engineering Mechanics
If the body falls freely under gravity, then the gravitational acceleration is taken as

-8.9 m/s2
+8.9 m/s2
-9.8 m/s2
+9.8 m/s2

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Engineering Mechanics
In ideal machines, mechanical advantage is __________ velocity ratio.

Less than
Equal to
None of these
Greater than

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Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion is __________ at the mean position.

None of these
Maximum
Minimum
Zero

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Engineering Mechanics
Moment of inertia is the

Second moment of mass
Second moment of force
Second moment of area
All of these

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