Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • A ball of mass 'm' moving with velocity 'v ' , collides inelastically with another identical ball . After collision the 1st ball moves with velocity <img alt="v / \sqrt 2" src=

A ball of mass 'm' moving with velocity 'v ' , collides inelastically with another identical ball . After collision the 1st ball moves with velocity v / \sqrt 2 in a direction perpendicular to initial direction of motion . Find the speed of second ball after collision 

Option: 1

\frac{\sqrt 3}{2}v


Option: 2

\frac{1}{2} v


Option: 3

\sqrt\frac{3}{2}v


Option: 4

\sqrt 2 v


Answers (1)

best_answer

 

 

Momentum conservation along x-axis 

mv = mv_1 \cos \theta

v = v_1 \cos \theta ....(1)

along y- axis 

0 = mv / \sqrt 2 - mv _1 \sin \theta

\frac{v}{\sqrt 2} = v_1 \sin \theta ....(2)

v^2 + \frac{v^2}{2} = v _{1}^{2} (\sin ^2 \theta + \cos ^2 \theta )

v _{1}^{2} = \frac{3v^2}{2}\Rightarrow v_1 =\sqrt \frac{3}{2} v

 

 

 

 

Posted by

Suraj Bhandari

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

NEET UG result 2025 withheld? Reasons, implications; here’s what to do
anam-khan

NEET UG Result 2025: Allen Institute sweeps rankings with 4 in top 10, 39 in top 100
anam-khan

Mahesh Kumar from Rajasthan tops NEET UG 2025; secures AIR 1 rank, shares study plan, prep strategies

Latest Question