Question # 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

When the body moves with constant acceleration the velocity time graph is

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Parabola

Hyperbola

Straight line

Curve

Change of momentum is equal to

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Force

Tension

Impulse

Pressure

Inertia may expressed in

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Kg

Newton

Watt

Joule

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 motion and rest are

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Absolute

Relative

Mutual

All of these

The acceleration of a projectile along x axis is.

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Zero

Increase

Decrease

Equal to 'g'

The dimensional unit of impulse is.

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[MLT]

[MLT-1]

[ML-1T-1]

[M-1L-1T-1]

The mass of an object is quantitative measure 0 its

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Momentum

Acceleration

Inertia

Energy

The velocity of a free falling body just before Hattin the ground is 9.8 ms-1, the height through which is fall be

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98 m

19.6 m

4.9 m

9.8 m

The action and reaction never act on

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Same body

Two bodies

many bodies

All of these

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

Height of projectile is maximum at an angle of.

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45^o

60^o

30^o

90^o

Rate of change of velocity is called

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Speed

Acceleration

Displacement

Torque

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 maximum range of projectile is 100 km, Take 9=10 ms-2, the initial velocity of the projectile will be.

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1000 kms-1

1 kms-1

10 kms-1

100 kms-1

A paratooper moves downward with

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Zero acceleration

Constant acceleration

Positive acceleration

Negative acceleration

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