Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 3 - Motion in a Straight Line>Exercise>Q 1

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Agniveer Vayu

IMPORTANT

Earn 100

Assertion: If the displacement of the body is zero, the distance covered by it may not be zero.
Reason: Displacement is a vector quantity and distance is a scalar quantity.

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Important Questions on Motion in a Straight Line

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Agniveer Vayu

IMPORTANT

Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 3 - Motion in a Straight Line>Exercise>Q 2

A person moves

30 m

north and then

20 m

towards east and finally

30 \sqrt{2} m

in south-west direction. The displacement of the person from the origin will be

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Agniveer Vayu

IMPORTANT

Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 3 - Motion in a Straight Line>Exercise>Q 3

The displacement-time graphs of two moving particles make angles of

30 °

and

45 °

with the

x

-axis. The ratio of the two velocities

(\frac{v_{1}}{v_{2}})

is

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Agniveer Vayu

IMPORTANT

Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 3 - Motion in a Straight Line>Exercise>Q 4

The distance travelled by a particle starting from rest and moving with an acceleration

\frac{4}{3} m s^{- 2}

in

3^{r d}

second is

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IMPORTANT

Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 3 - Motion in a Straight Line>Exercise>Q 5

A particle moves along the

X

axis in such a way that its coordinate

(x)

varies with time

(t)

according to the expression

x = 2 - 5 t + 6 t^{2}

metre. The initial velocity of the particle is:

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Agniveer Vayu

IMPORTANT

Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 3 - Motion in a Straight Line>Exercise>Q 6

The position

x

of a particle with respect to time

t

along

x

-axis is given by

x = 9 t^{2} - t^{3}

where

x

is in metres and t in seconds. What will be the position of this particle when it achieves maximum speed along the

+ x

direction?

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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 3 - Motion in a Straight Line>Exercise>Q 7

For uniform acceleration in rectilinear motion, which of the following is not correct?

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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 3 - Motion in a Straight Line>Exercise>Q 8

Figure shows the position-time (

x - t

) graph of one dimensional motion of a body of mass

500 g .

What is the interval between two consecutive impulses received by the body?
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Agniveer Vayu

IMPORTANT

Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 3 - Motion in a Straight Line>Exercise>Q 9

The $x - t$ graph shown in figure represents.

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