Question # 1

When a body is whirled in a horizontal circle by means of string, the centripetal force is supplied by

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Mass of body

Velocity of a body

Tension in the string

Centripetal acceleration

As we go from pole to equator of earth, the value of 'g'

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Increase

Decrease

Remain constant

Zero

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

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

The largest satellite system is managed by

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116 countries

126 countries

136 countries

140 countries

Angular acceleration is produced by

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Power

Torque

Pressure

Force

Pi radian is equal to.

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0^o

90^o

180^o

57.3^o

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

The formula of centripetal acceleration is

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The moment of inertia is analogue to

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Mass

Weight

Torque

Force

International Telecommunication satellite

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4,6,8 and 10 Hz

4,6,11 and 14 GHz

4,6,8 and 12 Hz

4,8,11 and 16 GHz

The diver spins faster when moment of inertia becomes.

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smaller

Greater

Constant

Zero

Which quantity of the following is dimensionless.

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Angular velocity

Centripetal force

Angular acceleration

Angular displacement

The value of angular momentum is maximum when 0 is

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90^o

60^o

75^o

45^o

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 weight of the body at the centre of earth is

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Maximum

Minimum

Zero

Infinite

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