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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
A stone of mass 1 kg is tied to a string of length 1 m and whirled in a horizontal circle at a constant angular speed 5 rad/sec. The tension in the string is,

5 N
15 N
10 N
25 N

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Applied Mechanics and Graphic Statics
Two forces of 6 Newtons and 8 Newtons which are acting at right angles to each other, will have a resultant of

12 Newtons
5 Newtons
10 Newtons
8 Newtons

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Applied Mechanics and Graphic Statics
The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 meters. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is

10.88 m/sec
12.88 m/sec
5.88 m/sec
8.88 m/sec

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Applied Mechanics and Graphic Statics
The Centre of gravity of a 10 × 15 × 5 cm T section from its bottom, is

7.85 cm
7.5 cm
8.75 cm
5.0 cm

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Applied Mechanics and Graphic Statics
If a particle moves with a uniform angular velocity ‘ω’ radians/sec along the circumference of a circle of radius ‘r’, the equation for the velocity of the particle, is

v = ω √(y² - r²)
v = ω √(r² - y²)
v = ω √(r² + y²)
y = ω √(y - r)

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Applied Mechanics and Graphic Statics
The bending moment in an arch is proportional to

Vertical ordinate of the arch
Intercept between the arch axis and the funicular polygon
Vertical ordinate of funicular polygon
None of these

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