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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
For perfectly elastic bodies, the value of coefficient of restitution is

Between 0 and 1
Zero
1
0.5

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Applied Mechanics and Graphic Statics
Which of the following is a scalar quantity?

Impulse
Torque
Momentum
Energy

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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

400 J
200 J
150 J
50 J

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Applied Mechanics and Graphic Statics
In a lifting machine with efficiency 60%, an effort of 200 N is required to raise a load of 6 kN. The velocity ratio of the machine is

30
60
80
50

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Applied Mechanics and Graphic Statics
If the angular distance, 0 = 2t³ ‑ 3t², the angular acceleration at t = 1 sec. is

6 rad/sec²
1 rad/sec²
12 rad/sec²
4 rad/sec²

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Applied Mechanics and Graphic Statics
Ball ‘A’ of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball ‘B’ on the table. If the impact is perfectly elastic, the velocity of the ball ‘B’ just after impact would be

10 m/sec
Zero
None of these
5 m/sec

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