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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
Time of flight of a projectile on a horizontal plane, is

2u cosα/g
2u tanα/g
2u sinα/g
2u cotα/g

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Applied Mechanics and Graphic Statics
If ‘α’ is the angular acceleration of a compound pendulum whose angular displacement is ‘θ’, the frequency of the motion is

2π √(α - θ)
4π √(α/θ)
2π √(α/θ)
(1/2π) √(α/θ)

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Applied Mechanics and Graphic Statics
A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is
(i) 5000 Nm
(ii) 5000 kg.m
(iii) 5000 J

Both (i) and (iii)
Both (ii) and (iii)
Only (ii)
All (i), (ii) and (iii)

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Applied Mechanics and Graphic Statics
The instantaneous centre of a member lies at the point of intersection of two lines drawn at the ends of the member such that the lines are inclined to the direction of motion of the ends at

30°
60°
45°
90°

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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)

1/r
log r
r2
r

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Applied Mechanics and Graphic Statics
A geo-stationary satellite is one which orbits the earth with a velocity of rotation of

Moon
Sun
Earth
Pole

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