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A ball of mass $m$ is thrown upward with a velocity $v$ . The air exerts an average resisting force $F$ . The velocity with which the ball returns to the thrower is

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Important Questions on Kinematics

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Assam CEE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Kinematics>Assam CEE 2018>Q 1

The driver of a bus moving at an speed of

60 km {hr}^{- 1}

saw a man at a distance of

52 m

from the bus. The driver stopped the car at a distance of

2 m

from the man using brake. The time required to stop the bus is

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Kinematics>Assam CEE 2018>Q 2

The displacement of a particle moving along a straight line is related to time as

\sqrt{x} = t - 3

. The displacement of the particle when its velocity is zero is

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Kinematics>Assam CEE 2017>Q 3

Water-drops are falling at regular intervals from a water tap situated at a height of

5 meters

from the ground. Just at the moment, the first drop touches the ground, the third drop comes out. At that moment, the height of the second drop of water from the ground will be

HARD

Assam CEE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Kinematics>Assam CEE 2017>Q 4

A car starts from rest with a constant acceleration of

5 {m s}^{- 2}

. At the same time, a bus travelling with a uniform velocity of

50 {m s}^{- 1}

overtakes and passes the car. The distance through which the car again overtakes the bus is:

HARD

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Kinematics>Assam CEE 2016>Q 5

Two uniformly dense spherical balls of radius

R

and

2 R

are released simultaneously from identical heights. If both the balls hit the ground at the same time, then the ratio of densities of the balls,

ρ_{R} : ρ_{2 R}

is (here,

ρ_{R}

is the density of the ball with radius

R

and

ρ_{2 R}

is the density of the ball with radius

2 R

)

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Assam CEE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Kinematics>Assam CEE 2016>Q 6

M.S. Dhoni hits two cricket balls in the air in a

T - 20

match. Both the balls leave his bat at the same velocity but at different angles of

30 °

and

60 °

respectively. If one ignores air friction and wind velocity, which of the following statements is correct? (Angles are with respect to the horizontal)

MEDIUM

Assam CEE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Kinematics>Assam CEE 2016>Q 7

The position of a particle as a function of time is given by

\vec{r} (t) = A \cos ω t \hat{i} + B \sin ω t \hat{j}

where

A

and

B

are two real positive constants with

A > B

. The orbit of the particle looks like-

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Kinematics>Assam CEE 2016>Q 8

The equation of motion of a body is,

\frac{d v (t)}{d t} = 9 - 3 v (t)

where,

v (t)

is the speed (in

m s^{- 1}

) at time

t

(in second). If the body was at rest at

t = 0

, then which of the following is correct?

A ball of mass m is thrown upward with a velocity v. The air exerts an average resisting force F. The velocity with which the ball returns to the thrower is

Important Questions on Kinematics

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A ball of mass $m$ is thrown upward with a velocity $v$ . The air exerts an average resisting force $F$ . The velocity with which the ball returns to the thrower is