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

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A person travelling on a straight line moves with a uniform velocity $v_{1}$ for some time and with uniform velocity $v_{2}$ for the next the equal time. The average velocity $v$ is given by

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Important Questions on Motion in a Straight Line

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

A particle is moving with uniform acceleration along a straight line. The average velocity of the particle from

P

to

Q

is

8 m s^{- 1}

and that from

Q

to

S

is

12 m s^{- 1}

. If

Q S = P Q

, then the average velocity from

P

to

S

is

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

A particle is moving such that its position coordinates

(x, y)

are

(2 m, 3 m)

at time

t = 0

,

(6 m, 7 m)

at time

t = 2 s

and

(13 m, 14 m)

at time

t = 5 s

. Average velocity vector

(\vec{v_{a v}})

from

t = 0

to

t = 5 s

is:

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

What does the speedometer of a vehicle read/measure?

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

The displacement of a particle moving in a straight line is given by the expression

x = A t^{3} + B t^{2} + C t + D

in meters, where t is in seconds and A, B, C and D are constants. The ratio between the initial acceleration and initial velocity is

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

The displacement of a body is given by

2 s = g t^{2}

where

g

is a constant. The velocity of the body at any time

t

is:

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

The position of a particle at any instant

t

is given by,

x = a \cos ω t

. The speed-time graph of the particle is given by_____.

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

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The figure shows distance-time curve for a particle. The maximum instantaneous velocity of the particle is around the point

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

Statement- 1: The velocity of a particle depends on its position vector.
Statement - 2: If

\vec{r}

is position vector of a particle at any time

t

, velocity is given by

\vec{v} = \frac{d \vec{r}}{d t}

.