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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
Energy may be defined as

Capacity of doing work
All listed here
Power of doing work
Rate of doing work

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Applied Mechanics and Graphic Statics
A hoop of radius 3 m weighs 100 kg. It rolls along a horizontal floor so that at its centre of mass has a speed of 200 mm/sec. The work required to stop the hoop is

8 J
2 J
4 J
6 J

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

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

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Applied Mechanics and Graphic Statics
Time period and length of a second’s pendulum respectively are

2 sec and 92.7 cm
2 sec and 99.4 cm
1 sec and 99.4 cm
1 sec and 92.7 cm

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Applied Mechanics and Graphic Statics
The time period of a simple pendulum depends on (i) Mass of suspended particle (ii) Length of the pendulum (iii) Acceleration due to gravity

Both (ii) and (iii)
Both (i) and (iii)
All are correct
Only (i)

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Applied Mechanics and Graphic Statics
A cube on a smooth horizontal surface

Cannot be in neutral equilibrium
Can be in any of these states
Cannot be in unstable equilibrium
Cannot be in stable equilibrium

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