Question # 1

If the initial velocity of a projectile becomes doubled, the time of fight will be.

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Same

4 times

Double

3 times

The horizontal component of velocity of projectile

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Increases

Decreases

Remain same

Decreases and then increases

A body covers a distance of 10 m in 1 sec with a constant velocity of 10 ms-1 , Acceleration produced by the body is.

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0 ms-1

2 ms-2

5 ms-2

10 ms-2

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

The equations of motion hold good for

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Variable acceleration

Uniform acceleration

Centripetal acceleration

All of these

A paratooper moves downward with

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Zero acceleration

Constant acceleration

Positive acceleration

Negative acceleration

The mass of an object is quantitative measure 0 its

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Momentum

Acceleration

Inertia

Energy

The area between velocity time graph and the time axis is numerically equal to.

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?Speed of object

Distance covered by the object

Average velocity of the object

Acceleration of the object.

Height of projectile is maximum at an angle of.

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45^o

60^o

30^o

90^o

In the absence of air resistance the acceleration of a body will be

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Uniform

Variable

Instantaneous

None of these

Change of momentum is equal to

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Force

Tension

Impulse

Pressure

When the car moves with an increasing acceleration then its velocity time graph is always

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Constant

Variable

A straight line

A curve

If velocity time graph is parallel to time axis, then acceleration of moving body will be.

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Maximum

Positive

Zero

Negative

Rate of change of displacement is called

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Speed

Velocity

Kinetic energy

None of these

A force applied on a body produces acceleration in

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Opposite direction

perpendicular direction

Its own direction

In any direction

An immediate source of energy for our body is:

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mango

Glucose

mushroom

meat

An athlete runs with a speed of 12 ms-1. Determine the longest jump he can undertake.

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12 m

14.4 m

24 m

16.2 m

A mass of 1 kg is freely falling. The force of gravity is.

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1 N

9.8 N

0.5 N

Zero

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