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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The efficiency of the lifting machine is

0.55
0.5
0.3
0.4

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Applied Mechanics and Graphic Statics
If two equal forces of magnitude ‘P’ act at an angle ‘θ’, their resultant, will be

P cos θ/2
2P cos θ/2
P tan θ/2
2P sin θ/2

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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

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

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Applied Mechanics and Graphic Statics
The rotational velocity of a satellite is increased by 450 m per second if its launch is done from equator

Eastward
Southward
Westward
Northward

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Applied Mechanics and Graphic Statics
The rate of change of displacement of a body with respect to its surrounding, is known

Speed
None of these
Velocity
Acceleration

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Applied Mechanics and Graphic Statics
The frequency of oscillation on moon as compared to that on earth, will be

3 times more
3 times less
2.44 times less
2.44 times more

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