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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
A disc of mass 4 kg, radius 0.5 m and moment of inertia 3 kg.m² rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is

400 J
50 J
200 J
150 J

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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

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

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Applied Mechanics and Graphic Statics
If y is force and x is velocity, then dimensions of —=r are dx2

M2L’T3
M’L-‘T1
M’^T’
M’L-‘T0

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Applied Mechanics and Graphic Statics
A trolley wire weighs 1 kg per metre length. The ends of the wire are attached to two poles 20 m apart. If the horizontal tension is 1000 kg, the central dip of the cable is

4 cm
2 cm
5 cm
3 cm

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Applied Mechanics and Graphic Statics
The moment of inertia of a circular lamina of diameter ‘d’, about an axis perpendicular to the plane of the lamina and passing through its centre, is

π/64 (D⁴ + d⁴)
πd⁴/32
πd⁴/16
πd⁴/24

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Applied Mechanics and Graphic Statics
A flywheel of moment of inertia 20 kg.m is acted upon by a tangential force of 5 N at 2 m from its axis, for 3 seconds. The increase in angular velocity in radian per second is

3
43832
2
43892

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