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

EASY

Agniveer Vayu

IMPORTANT

Earn 100

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?

50% studentsanswered this correctly

Important Questions on Motion in a Straight Line

MEDIUM

Agniveer Vayu

IMPORTANT

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?

MEDIUM

Agniveer Vayu

IMPORTANT

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?
Question Image

Question Image

EASY

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.

Question Image

EASY

Agniveer Vayu

IMPORTANT

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

Assertion: The speed of a body can be negative.
Reason: If the body is moving in the opposite direction of positive motion, then its speed is negative.

EASY

Agniveer Vayu

IMPORTANT

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

A car moving on a straight road covers one third of the distance with

20 km h^{- 1}

and the rest with

60 km h^{- 1}

. The average speed of the car is,

MEDIUM

Agniveer Vayu

IMPORTANT

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

A vehicle travels half the distance

L

with speed

v_{1}

and the other half with speed

v_{2}

, then its average speed is

MEDIUM

Agniveer Vayu

IMPORTANT

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

A boy walks to his school at a distance of

6 km

with a speed of

2.5 km h^{- 1}

and walks back with a constant speed of

4 km h^{- 1}

. His average speed for the entire trip expressed in

km h^{- 1}

is

EASY

Agniveer Vayu

IMPORTANT

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

A particle moves with constant speed

v

along a regular hexagon

A B C D E F

in the same order. Then, the magnitude of the average velocity for its motion from

A

to,