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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 tanα/g
2u sinα/g
2u cosα/g
2u cotα/g

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Applied Mechanics and Graphic Statics
On a ladder resisting on a smooth ground and leaning against a rough vertical wall, the force of friction acts

Towards the wall at its upper end
Away from the wall at its upper end
Upwards at its upper end
Downwards at its upper end

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Applied Mechanics and Graphic Statics
For the given values of initial velocity of projection and angle of inclination of the plane, the maximum range for a projectile projected upwards will be obtained, if the angle of projection is

α = β/2 - π/2
α = π/2 + β/2
α = π/4 - β/2
α = π/4 - β/2

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Applied Mechanics and Graphic Statics
A vehicle weighing w kg is to run on a circular curve of radius r. If the height of its centre of gravity above the road level is h and the distance between the centres of wheels is 2a, the maximum velocity, in order to avoid over turning, will be

∛(gra/h)
gra/h
√(gra/h)
4√(gra/h)

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Applied Mechanics and Graphic Statics
When two forces, each equal to P, act at 90° to each other, then the resultant will be

P/√2
P√2
2P
P

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Applied Mechanics and Graphic Statics
The practical units of work, is

Joule
Dyne
Newton
Erg

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