CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 3 - Rest and Motion : Kinematics>QUESTIONS FOR SHORT ANSWER>Q 12

EASY

JEE Main

IMPORTANT

Earn 100

A player hits a baseball at some angle. The ball goes high up in space. The same player runs and catches the ball before it hits the ground. Which of the two (the player or the ball) has greater displacement?

Important Questions on Rest and Motion : Kinematics

EASY

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 3 - Rest and Motion : Kinematics>QUESTIONS FOR SHORT ANSWER>Q 13

The increase in the speed of a car is proportional to the additional petrol put into the engine. Is it possible to accelerate a car without putting more petrol or less petrol into the engine?

MEDIUM

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 3 - Rest and Motion : Kinematics>QUESTIONS FOR SHORT ANSWER>Q 14

Rain is falling vertically downwards. A man running on the road keeps his umbrella tilted but a man standing on the street keeps his umbrella vertical to protect himself from the rain. But both of them keep their umbrella vertical to avoid the vertical sun-rays. Explain.

EASY

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 3 - Rest and Motion : Kinematics>OBJECTIVE I>Q 1

A motor car is going due north at a speed of

50 km h^{- 1}

. It makes a

90 °

left turn without changing the speed. The change in the velocity of the car is

MEDIUM

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 3 - Rest and Motion : Kinematics>OBJECTIVE I>Q 2

Figure shows the displacement-time graph of a particle moving on the

x

-axis.

Question Image

MEDIUM

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 3 - Rest and Motion : Kinematics>OBJECTIVE I>Q 3

A particle has a velocity

u

towards the east at

t = 0

. Its acceleration is towards the west and is constant. Let

x_{A}

and

x_{B}

be the magnitude of displacements in the first

10 seconds

and the next

10 seconds

.

MEDIUM

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 3 - Rest and Motion : Kinematics>OBJECTIVE I>Q 4

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 equal time. The average velocity

v

is given by

MEDIUM

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 3 - Rest and Motion : Kinematics>OBJECTIVE I>Q 5

A person travelling on a straight line moves with a uniform velocity

v_{1}

for a distance and with a uniform velocity

v_{2}

for the next equal distance. The average velocity

v

is given by

HARD

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 3 - Rest and Motion : Kinematics>OBJECTIVE I>Q 6

A stone is released from an elevator going up with an acceleration

a

. The acceleration of the stone after the release is