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Figure shows the graphical variation of displacement with time for the case of a particle moving along a straight line. The accelerations of the particle during the intervals $O A, A B, B C$ and $C D$ are respectively

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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 8

The displacement of a particle undergoing rectilinear motion along the

x

-axis is given by

x = (2 t^{3} + 21 t^{2} + 60 t + 6)

. The acceleration of the particle when its velocity is zero is

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

A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?

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

A balloon is ascending at the rate of

14 {ms}^{- 1}

at a height of

98 m

above the ground when a packet is dropped from the balloon. After how much time and with what velocity does it reach the ground?

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

A ball is released from the top of a tower of height

h

meters. It takes

T

seconds to reach the ground. What is the position of the ball after

\frac{T}{3}

seconds?

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

A particle moves in a straight line with a constant acceleration. It changes its velocity from

10 m s^{- 1}

20 m s^{- 1}

while passing through a distance

135 m

In t second. The value of

t

is:

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

A particle starts its motion from rest under the action of a constant force. If the distance covered in first

10 s

S_{1}

and that covered in first

20 s

S_{2}

then

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

A bus accelerates from rest, for time

t_{1}

, at a constant rate

α

and then retards at a constant rate

β

, for time

t_{2}

, and comes to rest. Then

\frac{t_{1}}{t_{2}}

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Agniveer Vayu

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

A car moving along a straight road with speed of

144 k m h^{- 1}

is brought to a stop within a distance of

200 m .

How long does it take for the car to stop?

Figure shows the graphical variation of displacement with time for the case of a particle moving along a straight line. The accelerations of the particle during the intervals OA, AB, BC and CD are respectively

Important Questions on Motion in a Straight Line

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Figure shows the graphical variation of displacement with time for the case of a particle moving along a straight line. The accelerations of the particle during the intervals $O A, A B, B C$ and $C D$ are respectively