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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

18° 48'
19° 48'
20° 48'
17° 48'

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Applied Mechanics and Graphic Statics
The angular speed of a car taking a circular turn of radius 100 m at 36 km/hr will be

100 rad/sec
0.1 rad/sec
10 rad/sec
1 rad/sec

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Applied Mechanics and Graphic Statics
The following factor affects the orbit of a satellite up to an altitude of 720 km from the earth's surface

Aerodynamic forces
None of these
Gravity of the sun and the moon
Uneven distribution of the gravitational field

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Applied Mechanics and Graphic Statics
A 50 kg boy climbs up a 8 m rope in gymnasium in 10 sec. The average power developed by the boy is approximately

None of these
500 watts
400 watts
4000 watts

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

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Applied Mechanics and Graphic Statics
A car goes round a curve of radius 100 m at 25 m/sec. The angle to the horizontal at which the road must be banked to prevent sideways friction on the car wheels is tan"1 x, where x is (Assume g = 10 m/sec²)

43898
43959
43832
44079

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