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APPLIED MECHANICS AND GRAPHIC STATICS

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:

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

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Applied Mechanics and Graphic Statics
A particle is executing simple harmonic motion in a line 1.0 m long. If the time of one complete vibration is 1 sec, then the maximum velocity of the particle is

3.14 m/sec
1.57 m/sec
6.28 m/sec
1.00 m/sec

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Applied Mechanics and Graphic Statics
If A is the amplitude of particle executing simple harmonic motion, then the total energy E of the particle is

Proportional to A²
Independent of A
Proportional to A
Proportional to 1/A²

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Applied Mechanics and Graphic Statics
‘P’ is the force acting on a body whose mass is ‘m’ and acceleration is ‘f’. The equation P - mf= 0, is known as

Equation of dynamic equilibrium
Equation of dynamics
None of these
Equation of statics

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Applied Mechanics and Graphic Statics
For lifting a load of 50 kg through a distance of 2.5 cm, an effort of 12.5 kg is moved through a distance of 40 cm. The efficiency of the lifting machine, is

0.7
0.65
0.75
0.6

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