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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
If ‘v’ and ‘ω’ are linear and angular velocities, the centripetal acceleration of a moving body along the circular path of radius ‘r’, will be

r/ω²
v²/r
r/v²
ω²/r

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Applied Mechanics and Graphic Statics
The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to (where r is the distance of’the particle from centre of the earth)

r
1/r
log r
r2

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Applied Mechanics and Graphic Statics
If the velocity of projection is 4 m/sec and the angle of projection is α°, the maximum height of the projectile from a horizontal plane, is

u² sin² α/2g
u² tan² α/2g
u² sin 2α/2g
u² cos² α/2g

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Applied Mechanics and Graphic Statics
The angle which an inclined surface makes with the horizontal when a body placed on it is on the point of moving down, is called

Angle of friction
Angle of repose
Angle of inclination
None of these

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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

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

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Applied Mechanics and Graphic Statics
Energy may be defined as

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

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