A particle of mass m_(1)=4 kg moving at 6hat(i) m/s collides perfectly elastically with a particle of mass m_(2)=2kg moving at 3hat(i)m//s.

A particle of mass m_(1)=4 kg moving at 6hat(i) m/s collides perfectly

1.	A particle of mass m_(1)=4 kg moving at 6hat(i) m/s collides perfectly elastically with a particle of mass m_(2)=2kg moving at 3hat(i)m//s.
Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/velocity-1444512" style="font-weight:bold;" target="_blank" title="Click to know more about VELOCITY">VELOCITY</a> of centre mass is `5hat(i)m//s` <br/>The velocities of the particles relative to the centre of mass have same <a href="https://interviewquestions.tuteehub.com/tag/magnitude-1083080" style="font-weight:bold;" target="_blank" title="Click to know more about MAGNITUDE">MAGNITUDE</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/speed-1221896" style="font-weight:bold;" target="_blank" title="Click to know more about SPEED">SPEED</a> of individual particle before and after collision remains same <br/>The velocity of particles relative to <a href="https://interviewquestions.tuteehub.com/tag/cm-919986" style="font-weight:bold;" target="_blank" title="Click to know more about CM">CM</a> after collision are `<a href="https://interviewquestions.tuteehub.com/tag/vec-723433" style="font-weight:bold;" target="_blank" title="Click to know more about VEC">VEC</a>(V)_(1f//cm)=-hat(i)m//s vec(V)_(2f//cm)=-2hat(i)m//s` </p>Answer :A::D</body></html>