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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
A geo-stationary satellite is one which orbits the earth with a velocity of rotation of

Sun
Earth
Pole
Moon

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Applied Mechanics and Graphic Statics
A symmetrical body is rotating about its axis of symmetry, its moment of inertia about the axis of rotation being 2 kg -m2 and its rate of rotation 2 revolutions/see. The angular momentum of the body in kg-m2/sec is

6 7i
8TC
4
8

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Applied Mechanics and Graphic Statics
A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is (i) 5000 Nm (ii) 5000 kg.m (iii) 5000 J

Only (ii)
All (i), (ii) and (iii)
Both (ii) and (iii)
Both (i) and (iii)

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Applied Mechanics and Graphic Statics
A ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/sec hits an identical stationary ball ‘B’ on the table. If the impact is perfectly plastic, the velocity of the ball ‘B’ just after impact would be

None of these
5 m/sec
Zero
10 m/sec

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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

πd⁴/32
πd⁴/16
π/64 (D⁴ + d⁴)
πd⁴/24

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Applied Mechanics and Graphic Statics
The velocity of a body fallen from height ‘h’, on reaching the ground is given by

v = 2gh²
v = √(2gh)
v = 1/√(2gh)
v = 2gh

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