Question # 1

Moment of inertia is measure din

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Kg m2

Kg m-2

Rad s-1

Joule second

Angular acceleration is produced by

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Power

Torque

Pressure

Force

When a body moves in circular motion, the angle between linear and angular velocity is.

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180^o

90^o

60^o

75.3^o

the angular version of F= ma is

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L = 1w

pi = 1a

l = pi a

f = mv/t

The moment of inertia is analogue to

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Mass

Weight

Torque

Force

A man of mass 5 kg is falling freely, the fore acting on it will be

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5 N

9.8 N

19.6 N

49 N

The artificial satellites are held in orbits by

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Gravitational force

Electric force

Magnetic force

All of these

The maximum velocity necessary to put a satellite into orbit is

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7.1 kms-1

7.3 kms-1

7.9 kms-1

8,9 kms-1

Which is unimportant in describing the satellites orbit.

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Distance of satellite from earth's center

Gravitational constant G

Mass of satellite

Mass of earth

Which quantity of the following is dimensionless.

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Angular velocity

Centripetal force

Angular acceleration

Angular displacement

The dimensions of angular velocity are

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[LT-1]

[LT-2]

[T-1]

[L-1T-1]

A wheel of radius 50 cm having an angular speed of a rad /s have linear speed.

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1.5 m/s

3.5 m/s

2.5 m/s

4.5 m/s

If a body revolves under centripetal force its angular acceleration is

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Non zero

Variable

Increasing

Zero

The largest satellite system is managed by

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116 countries

126 countries

136 countries

140 countries

Einstein's theory gives us the physical picture of how the

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Body moves

Gravity works

Moment of inertia produced

Weightlessness creates

Centripetal force perform

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Maximum work

Minimum work

Negative work

No work

When a particle is moving along a circular path its projection along the diameter executes

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Linear motion

Vibratory motion

Rotatory motion

SHM

Time period of geostationary satellite of radius 'R' is

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1 hour

48 min

1 day

1 month

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