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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
A disc of mass 4 kg, radius 0.5 m and moment of inertia 3 kg.m² rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is

50 J
200 J
400 J
150 J

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Applied Mechanics and Graphic Statics
Two particles have been projected at angles 64° and 45° to the horizontal. If the velocity of projection of first is 10 m/sec, the velocity of projection of the other for equal horizontal ranges is

8.3 m/sec
9.3 m/sec
6.3 m/sec
7.3 m/sec

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Applied Mechanics and Graphic Statics
If the direction of projection bisects the angle between the vertical and the inclined plane, then the range of projectile on the inclined plane is

Zero
Maximum
None of these
Minimum

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Applied Mechanics and Graphic Statics
Power can be expressed as

Work × time
Work/energy
Work/distance
Work/time

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Applied Mechanics and Graphic Statics
A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is

43864
43839
43833
44052

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Applied Mechanics and Graphic Statics
The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 meters. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is

5.88 m/sec
12.88 m/sec
8.88 m/sec
10.88 m/sec

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