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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

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

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Applied Mechanics and Graphic Statics
A rigid body suspended vertically at a point and oscillating with a small amplitude under the action of the force of gravity, is called

Compound pendulum
None of these
Simple pendulum
Second's pendulum

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Applied Mechanics and Graphic Statics
For a non-concurrent force system to be in equilibrium

Only the closure of funicular polygon is sufficient
Only the closure of force polygon is sufficient
Both force polygon and funicular polygon must close
None of these

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Applied Mechanics and Graphic Statics
On a mass ‘m’ describing a circular path of radius ‘r’, the centrifugal force

Is mw2r/g kgf
Acts tangentially to the circular path
Acts away from the centre of rotation
Acts towards the centre of rotation

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Applied Mechanics and Graphic Statics
A body A of mass 6.6 kg which is lying on a horizontal platform 4.5 m from its edge is connected to the end of a light string whose other end is supporting a body of mass 3.2 kg as shown in below figure. If the friction between the platform and the body A is 1/3, the acceleration is

1.25 m/sec²
0.5 m/sec²
1.00 m/sec²
0.75 m/sec²

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Applied Mechanics and Graphic Statics
The maximum pull in a cable, carrying a uniformly distributed load and supported at two ends which are at the same level, is at

Supports
Mid span
None of these
Quarter span

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