Question # 1

In the absence of external force, the change in momentum is.

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Zero

Constant

Decreasing

Increasing

For maximum range the angle of projection must be

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30^o

45^o

60^o

90^o

The motion and rest are

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Absolute

Relative

Mutual

All of these

Horizontal range is maximum when the angle of projectile is.

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0 o

30 o

45 o

60 o

The dimensional unit of impulse is.

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[MLT]

[MLT-1]

[ML-1T-1]

[M-1L-1T-1]

When the projectile reaches the highest point of trajectory, the vertical component of velocity becomes.

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Small

Zero

Maximum

Vi cos

the shortest distance between two points is called.

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Speed

Acceleration

Distance

Displacement

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

The ballistic missiles are used only for

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Long range

Short range

Medium range

Constant range

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

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Double

Half

One fourth

Constant

The rate of change of momentum is equal to

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Impulse

Torque

Velocity

Force

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Physics English Medium Fsc Part 1 Chapter 3 Online MCQs Test MCQs With Answers

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