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Applied Mechanics and Graphic Statics

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

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

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Applied Mechanics and Graphic Statics
A vehicle weighing w kg is to run on a circular curve of radius r. If the height of its centre of gravity above the road level is h and the distance between the centres of wheels is 2a, the maximum velocity, in order to avoid over turning, will be

√(gra/h)
gra/h
4√(gra/h)
∛(gra/h)

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Applied Mechanics and Graphic Statics
A system of coplanar forces is in equilibrium when

Both force polygon" and funicular polygon close
Funicular polygon closes
All the forces are concurrent
Force polygon closes

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Applied Mechanics and Graphic Statics
If a particle is projected inside a horizontal tunnel which is 554 cm high with a velocity of 60 m per sec, the angle of projection for maximum range, is

10°
8°
9°
11°

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Applied Mechanics and Graphic Statics
If two forces are in equilibrium, then the forces must(i) Be equal in magnitude(ii) Be opposite in sense(iii) Act along the same line

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

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Applied Mechanics and Graphic Statics
A weight of 100 kg is supported by a string whose ends are attached to pegs ‘A’ and ‘B’ at the same level shown in below figure. The tension in the string is

100 kg
750 kg
120 kg
50 kg

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