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Engineering Mechanics

Engineering Mechanics
When a body of mass 'm' attains a velocity 'v' from rest in time 't', then the kinetic energy of translation is

mv2
0.5 mgv2
mgv2
0.5 mv2

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Engineering Mechanics
The periodic time of one oscillation for a simple pendulum is (where l = Length of the pendulum.)

(1/2π). √(g/l)
None of these
(1/2π). √(l/g)
2π. √(l/g)

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Engineering Mechanics
Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.

Either ‘A’ or ‘B’
Do not meet
Meet
None of these

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Engineering Mechanics
The forces which meet at one point, but their lines of action __________ on the same plane, are Known as non-coplanar concurrent forces.

None of these
Do not lie
Either A or B
Lie

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Engineering Mechanics
The center of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius.

4r/ 3π
8r/3
3r/ 8
3r/4π

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Engineering Mechanics
Two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are

15 N and 5 N
20 N and 5 N
None of these
15 N and 15 N

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