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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
If g1 and g2 are the gravitational accelerations on two mountains A and B respectively, the weight of a body when transported from A to B will be multiplied by

g1/g2
g2
g2/g1
g1

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Applied Mechanics and Graphic Statics
If the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called

Negative work
Imaginary work
Virtual work
Zero work

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

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Applied Mechanics and Graphic Statics
A rigid body is in a stable equilibrium if the application of any force

Tends to lower the CG of the body
None of above
Can raise the CG of the body but cannot lower it
Neither raises nor lowers the CG of the body

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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

11°
8°
10°
9°

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Applied Mechanics and Graphic Statics
A rod 5 m in length is moving in a vertical plane. When it is inclined at 60° to horizontal, its lower end is moving horizontally at 3 m/sec and upper end is moving in vertical direction. The velocity of its upper end, is

1.5 m/sec
1.0 m/sec
2.5 m/sec
0.5 m/sec

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