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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
The moment of inertia of a circular lamina of diameter ‘d’, about an axis perpendicular to the plane of the lamina and passing through its centre, is

πd⁴/24
πd⁴/32
π/64 (D⁴ + d⁴)
πd⁴/16

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Applied Mechanics and Graphic Statics
Minimum potential energy of a system will be in the position of

Unstable equilibrium
Stable equilibrium
All of these
Neutral equilibrium

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Applied Mechanics and Graphic Statics
In SI units, the units of force and energy are respectively

Newton and joule
Dyne and erg
kg wt and joule
Newton and watt

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Applied Mechanics and Graphic Statics
A particle moves in a straight line and its position is defined by the equation x = 6 t² - t3 where t is expressed in seconds and ‘x’ in meters. The maximum velocity during the motion is

6 m/sec
48 m/sec
24 m/sec
12 m/sec

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Applied Mechanics and Graphic Statics
For perfectly elastic bodies, the value of coefficient of restitution is

1
Zero
0.5
Between 0 and 1

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Applied Mechanics and Graphic Statics
A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan”1 x, where x is

4/5
3/4
3/5
5/3

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