Match List I with List II. List I List II (a) C → - A → - B → = 0 (i) (b) A → - C → - B → = 0 (ii) (c) B → - A → - C → = 0 (iii) (d) A → + B → = - C → (iv) Choose the correct answer from the options given below:

(a) → (iv), (b) → (iii), (c) → (i), (d) → (ii)

(a) → ( iv ) , (b) → ( i ) , (c) → ( iii ) , (d) → (ii)

(a) → (iii), (b) → (ii), (c) → (iv), (d) → (i)

(a) → (i), (b) → (iv), (c) → (ii), (d) → (iii)

For a body projected at an angle with the horizontal from the ground, choose the correct statement

Gravitational potential energy is maximum at the highest point.

The horizontal component of velocity is zero at highest point.

The vertical component of momentum is maximum at the highest point.

The kinetic energy (K.E.) is zero at the highest point of projectile motion.

An object moves with speed v 1 , v 2 and v 3 along a line segment A B , B C and C D respectively as shown in figure. Where A B = B C and A D = 3 A B , then average speed of the object will be :

3 v 1 v 2 v 3 v 1 v 2 + v 2 v 3 + v 3 v 1

v 1 v 2 v 3 3 v 1 v 2 + v 2 v 3 + v 3 v 1

EASY

JEE Main

IMPORTANT

Earn 100

A body rotating with an angular speed of $600 rpm$ is uniformly accelerated to $1800 rpm$ in $10 \sec .$ The number of rotations made in the process is

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Important Questions on Kinematics

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 22 July 2021 Shift 1>Q 19

What will be the projection of vector

\vec{A} = \hat{i} + \hat{j} + \hat{k}

on vector

\vec{B} = \hat{i} + \hat{j} ?

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 22 July 2021 Shift 1>Q 20

Three particles

P, Q

and

R

are moving along the vectors

\vec{A} = \hat{i} + \hat{j}, \vec{B} = \hat{j} + \hat{k}

and

\vec{C} = - \hat{i} + \hat{j}

, respectively. They strike on a point and start to move in different directions. Now particle

P

is moving normal to the plane which contains vector

\vec{A}

and

\vec{B} .

Similarly particle

Q

is moving normal to the plane which contains vector

\vec{A}

and

\vec{C} .

The angle between the direction of motion of

P

and

Q

\cos^{- 1} (\frac{1}{\sqrt{x}}) .

Then the value of

x

.

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 25 July 2021 Shift 1>Q 21

Match List I with List II.

List I		List II
(a)	$\vec{C} - \vec{A} - \vec{B} = 0$	(i)
(b)	$\vec{A} - \vec{C} - \vec{B} = 0$	(ii)
(c)	$\vec{B} - \vec{A} - \vec{C} = 0$	(iii)
(d)	$\vec{A} + \vec{B} = - \vec{C}$	(iv)

Choose the correct answer from the options given below:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 25 July 2021 Shift 1>Q 22

Water droplets are coming from an open tap at a particular rate. The spacing between a droplet observed at

4^{th}

second after its fall to the next droplet is

34.3 m

. At what rate the droplets are coming from the tap ? (Take

g = 9.8 m s^{- 2}

)

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 25 July 2021 Shift 2>Q 23

The relation between time

t

and distance

x

for a moving body is given as

t = m x^{2} + n x

, where

m

and

n

are constants. The retardation of the motion is: (When

v

stands for velocity)

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 25 July 2021 Shift 2>Q 24

A balloon was moving upwards with a uniform velocity of

10 m s^{- 1}

. An object of finite mass is dropped from the balloon when it was at a height of

75 m

from the ground level. The height of the balloon from the ground when object strikes the ground was around: (takes the value of

g

10 m s^{- 2}

)

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 25 July 2021 Shift 2>Q 25

The instantaneous velocity of a particle moving in a straight line is given as

v = α t + β t^{2}

, where

α

and

β

are constants. The distance travelled by the particle between

1 s

and

2 s

is:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 25 July 2021 Shift 2>Q 26

Two vectors

\vec{X}

and

\vec{Y}

have equal magnitude. The magnitude of

(\vec{X} - \vec{Y})

n

times the magnitude of

(\vec{X} + \vec{Y})

. The angle between

\vec{X}

and

\vec{Y}

is :

A body rotating with an angular speed of 600 rpm is uniformly accelerated to 1800 rpm in 10 sec. The number of rotations made in the process is

Important Questions on Kinematics

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A body rotating with an angular speed of $600 rpm$ is uniformly accelerated to $1800 rpm$ in $10 \sec .$ The number of rotations made in the process is