EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Centre of Mass>TS EAMCET 2018 (04-May Shift-1)>Q 6

EASY

TS EAMCET

IMPORTANT

Earn 100

Assertion (A): When we bounce a ball on the ground, it comes to rest after a few bounces, losing all its energy. This is an example of violation of conservation of energy.

Reason (R): Energy can change from one form to another but the total energy is always conserved.

Which of the following is true?

38.3% studentsanswered this correctly

Important Questions on Centre of Mass

MEDIUM

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Centre of Mass>TS EAMCET 2018 (04-May Shift-1)>Q 7

A ball of mass

1 kg

moving along

X

-direction collides elastically with a stationary ball of mass

m

. The first ball (mass

= 1 kg

) recoils at right angle to its original direction of motion. If the second ball starts moving at an angle

30 °

with the

X

-axis, the value of

m

must be

MEDIUM

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Centre of Mass>TS EAMCET - 5 August 2021 Shift 2>Q 8

Ball

P

of mass

m

moving with velocity

' v'

collides with another ball

Q

of mass

2 m,

at rest. If

v_{P}

and

v_{Q}

are the final velocities of

P

and

Q

respectively, after collision, then
(Assume the coefficient of restitution is

1 / 3

)