Question # 1

A frame of reference stationed at the earth is an

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Inertial frame

None internal frame

Accelerated frame

Laboratory frame

The angle of projection for which its maximum height and horizontal range are equal

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46 ^o

56^o

66^o

76^o

10 N and 20 N are acting on a body of mass 2 kg the minimum acceleration will be.

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10 ms-2

20 ms-2

60 ms-2

5 ms-2

Inertia may expressed in

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Kg

Newton

Watt

Joule

The dimensional unit of impulse is.

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[MLT]

[MLT-1]

[ML-1T-1]

[M-1L-1T-1]

The velocity of a projectile is maximum

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At the highest point

At point of launching and just before striking the ground

At half of the height

After striking the ground

The time rate of change of momentum equals

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Weight

Applied force

Impulse

Mass

Food rich in proteins is:

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potato

grapes

vegetables

bread

Distance covered by a freely falling body is 2 seconds will be

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9.8 m

19.6 m

44.4 m

49 m

The acceleration of a projectile along x axis is.

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Zero

Increase

Decrease

Equal to 'g'

A man of 5000 kg moves with an acceralation of 1 ms-2 force acting on it is.

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5 N

500 N

50 N

5000 N

The slope of velocity time graph shows

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Total distance covered

Average acceleration

Instantaneous acceleration

Torque

When average velocity becomes equal to instantaneous than body is called moving with.

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Instantaneous acceleration

Constant acceleration

Constant velocity

Variable velocity

An immediate source of energy for our body is:

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mango

Glucose

mushroom

meat

A collision in which K.E. of the system is not conserved is

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Elastic collision

Inelastic collision

3rd low of motion

None of these

If a mass of a body is doubled, then acceleration becomes.

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Double

Half

One fourth

Constant

A force of 10 N acts on a body of mass 5 kg in one second. The change in its momentum will be.

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10 kgms-1

50 kg ms-1

2 kg ms-1

20 kg ms-1

If the slope of the velocity time graph remain constant then body is moving with.

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Uniform velocity

Negative variable acceleration

Variable acceleration

Uniform acceleration

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