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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
The equation of motion of a particle starting from rest along a straight line is x = t³ - 3t²+ 5. The ratio of the accelerations after 5 sec and 3 sec will be

3
4
2
5

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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

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

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Applied Mechanics and Graphic Statics
A ball is dropped from a height of 16 m on a horizontal floor. If it rebounds to a height of 9 m after striking the floor, the coefficient of restitution between ball and floor is

43894
43864
43834
43924

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Applied Mechanics and Graphic Statics
Force polygon method is applicable for

Any coplanar force system
A system of parallel forces only
Concurrent coplanar force system
Non-concurrent coplanar force system

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Applied Mechanics and Graphic Statics
A Second's pendulum gains 2 minutes a day. To make it to keep correct time its length

Is not changed but weight of the bob is increased
Must be increased
Is not changed but weight of the bob is decreased
Must be decreased

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Applied Mechanics and Graphic Statics
The resultant of two forces acting at right angles is √34 kg and acting at 60° is 70 kg. The forces are

3 kg and 5 kg
1 kg and 4 kg
2 kg and 3 kg
√3 kg and √5 kg

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