Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa

A man ( mass=50 kg ) and his son ( mass=20 kg) are standing on a frictionless surface facing each other. The man pushes his son so that he starts moving at a speed of 0.70ms^{-1} with respect to the man. The speed of the man with respect to the surface is :

  • Option 1)

    0.47ms^{-1}

  • Option 2)

    0.14ms^{-1}

  • Option 3)

    0.28ms^{-1}

  • Option 4)

    0.20ms^{-1}

 

Answers (2)

best_answer

\Rightarrow 0=50v_{1}-20v_{2}

and also v_{1}+v_{2}=0.7

\Rightarrow v_{1}=0.2m/s


Option 1)

0.47ms^{-1}

Option 2)

0.14ms^{-1}

Option 3)

0.28ms^{-1}

Option 4)

0.20ms^{-1}

Posted by

solutionqc

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Option 4

 

Posted by

ATHUL PAUL

View full answer

Similar Questions

Trending Articles/News

anam-khan

How to crack JEE Mains 2025 in 1 month? Follow study plan, revise high-score topics, experts advice
anam-khan

IIT JEE aspirant from Bihar found hanging in Kota hostel; 17th suicide this year
anam-khan

JEE Main 2025 just a month away; section-wise preparation tips, important topics, strategies

Latest Question