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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 sinα/g
2u tanα/g
2u cosα/g
2u cotα/g

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Applied Mechanics and Graphic Statics
A rod 5 m in length is moving in a vertical plane. When it is inclined at 60° to horizontal, its lower end is moving horizontally at 3 m/sec and upper end is moving in vertical direction. The velocity of its upper end, is

1.5 m/sec
0.5 m/sec
2.5 m/sec
1.0 m/sec

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Applied Mechanics and Graphic Statics
In case of S.H.M. the period of oscillation (T), is given by

T = 2ω/π²
T = π/2ω
T = 2π/ω
T = 2/ω

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Applied Mechanics and Graphic Statics
The condition of equilibrium for any system of forces in a plane is

That resultant couple must be zero
None of these
Both (A) and (B)
That polygon of forces must close

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Applied Mechanics and Graphic Statics
A ball moving with a velocity of 5 m/sec impinges a fixed plane at an angle of 45° and its direction after impact is equally inclined to the line of impact. If the coefficient of restitution is 0.5, the velocity of the ball after impact will be

2.5 m/sec
1.5 m/sec
3.5 m/sec
0.5 m/sec

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Applied Mechanics and Graphic Statics
A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?

None of these
prism
pyramid
both equally stable

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