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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
A block of weight 50 kg is placed on a horizontal plane. When a horizontal force of 18 kg is applied, the block is just on the point of motion. The angle of friction is

19° 48'
18° 48'
17° 48'
20° 48'

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Applied Mechanics and Graphic Statics
If a projectile is fired with an initial velocity of 10 m/sec at an angle of 60° to the horizontal, its horizontal and vertical velocity at the highest point of trajectory are

5√3 m/sec and 0
5 m/sec and 0
0 and 5 m/sec
5 and 5√3 m/sec

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Applied Mechanics and Graphic Statics
If two equal forces of magnitude ‘P’ act at an angle ‘θ’, their resultant, will be

P cos θ/2
2P sin θ/2
P tan θ/2
2P cos θ/2

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Applied Mechanics and Graphic Statics
If g1 and g2 are the gravitational accelerations on two mountains A and B respectively, the weight of a body when transported from A to B will be multiplied by

g1/g2
g1
g2/g1
g2

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Applied Mechanics and Graphic Statics
A particle moving with a simple harmonic motion, attains its maximum velocity when it passes

Through the mean position
Through a point at half amplitude
None of these
The extreme point of the oscillation

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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

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

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