Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

Two particles A and B initially at rest, move towards each other mutual force of attraction. At the instant when teh speed of A is V and speed of B is 2V,

the speed of centre of mass is



This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Initially both A and B were at rest. So momentum of centre of mass is 0. And it is given that there is no external force. Hence no change in momentum of centre of mass. And it will remain 0. As momentum(product of mass and velocity) is zero ans mass is not zero, velocity must be 0.
4 5 4
how can there be any system with one particle?
When you run alone, you form a system with only one person.
yeah. thanks a lot you prove to be a helping hang
Thanks. I try my best.
The speed of centre of mass is (2v/2v+v)+(v/2v+v)
2 3 2
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts