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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
If a flywheel increases its speed from 10 rpm to 20 rpm in 10 seconds, then its angular acceleration is

None of these
—rad/sec 10
—rad/sec 20
—rad/sec 30

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Applied Mechanics and Graphic Statics
The centre of gravity of the trapezium as shown in below figure from the side is at a distance of

(h/3) × [(2b + a)/(b + a)]
(h/2) × [(2b + a)/(b + a)]
(h/3) × [(b + 2a)/(b + a)]
(h/2) × [(b + 2a)/(b + a)]

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Applied Mechanics and Graphic Statics
‘P’ is the force acting on a body whose mass is ‘m’ and acceleration is ‘f’. The equation P - mf= 0, is known as

Equation of dynamics
Equation of dynamic equilibrium
Equation of statics
None of these

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Applied Mechanics and Graphic Statics
The angular speed of a car while taking a circular turn of radius 100 m at 36 km/hour, is

100 radian/sec
1000 radian/sec
0.1 radian/sec
1 radian/sec

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Applied Mechanics and Graphic Statics
A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is (i) 5000 Nm (ii) 5000 kg.m (iii) 5000 J

Only (ii)
Both (i) and (iii)
All (i), (ii) and (iii)
Both (ii) and (iii)

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Applied Mechanics and Graphic Statics
If two forces of 3 kg and 4 kg act at right angles to each other, their resultant force will be equal to

5 kg
1 kg
None of these
7 kg

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