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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
For a body moving with simple harmonic motion, the number of cycles per second, is known as its

Frequency
Oscillation
Amplitude
Periodic time

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Applied Mechanics and Graphic Statics
The equation of motion of a particle starting from rest along a straight line is x = t³ - 3t²+ 5. The ratio of the accelerations after 5 sec and 3 sec will be

2
5
3
4

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Applied Mechanics and Graphic Statics
If the resultant of two forces ‘P’ and ‘Q’ acting at an angle ‘θ’ makes an angle ‘α’ with ‘P’, then tan α equals

Q sin θ/P + Q sin θ
P sin θ/P + Q tan θ
P sin θ/P - Q cos θ
Q sin θ/P + Q cos θ

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Applied Mechanics and Graphic Statics
A particle is dropped from a height of 3 m on a horizontal floor, which has a coefficient of restitution with the ball of 1/2. The height to which the ball will rebound after striking the floor is

1.0 m
1.5 m
0.75 m
0.5 m

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Applied Mechanics and Graphic Statics
A train weighing 196 tonnes experiences a frictional resistance of 5(11/22) per tonne. The speed of the train at the top of a down gradient 1 in 78.4 is 36 km/hour. The speed of the train after running 1 km down the slope, is

10 √5 m/sec
5 √10 m/sec
3 √5 m/sec
5 √3 m/sec

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Applied Mechanics and Graphic Statics
The resultant of two forces acting at right angles is 5 kgf and if they act at an angle of 60°, it is 37 kgf. The magnitudes of the forces are:

3 kgf, 4 kgf
4 kgf, 5 kgf
5 kgf, 3 kgf
2 kgf, 3 kgf

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