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

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If the velocity-time graph has the shape $AMB,$ what would be the shape of the corresponding acceleration-time graph?

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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 - 24 Feb 2021 Shift 2>Q 46

A particle is projected with velocity

v_{0}

along

x

-axis. A damping force is acting on the particle which is proportional to the square of the distance from the origin i.e.

m a = - α x^{2} .

The distance at which the particle stops:

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 25 Feb 2021 Shift 1>Q 47

In an octagon $A B C D E F G H$ of equal side, what is the sum of $\vec{A B} + \vec{A C} + \vec{A D} + \vec{A E} + \vec{A F} + \vec{A G} + \vec{A H},$ if, $\vec{AO} = 2 \hat{i} + 3 \hat{j} - 4 \hat{k}$

Question Image

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 25 Feb 2021 Shift 1>Q 48

An engine of a train, moving with uniform acceleration, passes the signal-post with velocity

u

and the last compartment with velocity

v

. The velocity with which middle point of the train passes the signal post is :

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 25 Feb 2021 Shift 2>Q 49

A stone is dropped from the top of a building. When it crosses a point

5 m

below the top, another stone starts to fall from a point

25 m

below the top. Both stones reach the bottom of building simultaneously. The height of the building is :

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 25 Feb 2021 Shift 2>Q 50

\vec{P} \times \vec{Q} = \vec{Q} \times \vec{P}

, the angle between

\vec{P}

and

\vec{Q}

θ (0 ° < θ < 360 °)

. The value of

θ

will be ___

°

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 26 Feb 2021 Shift 1>Q 51

A boy pushes a box of mass

2 kg

with a force

\vec{F} = (20 \hat{i} + 10 \hat{j}) N

on a frictionless surface. If the box was initially at rest, then _______

m

is displacement along the

x

-axis after

10 s

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 26 Feb 2021 Shift 2>Q 52

The trajectory of a projectile in a vertical plane is

y = α x - β x^{2},

where

α

and

β

are constants and

x & y

are respectively the horizontal and vertical distances of the projectile from the point of projection. The angle of projection

θ

and the maximum height attained

H

are respectively given by

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 2 - Kinematics>JEE Main - 26 Feb 2021 Shift 2>Q 53

A scooter accelerates from rest for time

t_{1}

at constant rate

a_{1}

and then retards at constant rate

a_{2}

for time

t_{2}

and comes to rest. The correct value of

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

will be :

If the velocity-time graph has the shape AMB, what would be the shape of the corresponding acceleration-time graph?

Important Questions on Kinematics

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If the velocity-time graph has the shape $AMB,$ what would be the shape of the corresponding acceleration-time graph?