Free help with homework

Why join Brainly?

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


Q1. If mass of the moving body ismuch greater than the mass of the body at rest than what is the approximatevilocity of the moving body after head-on collision?
Q2. If a body of mass 2kg. is at restand is hit by a mass of 4kg. moving with 3m/s, find fraction of the momentumretained by the moving body assuming the collision to be elastic and head-on.Ans1. If n = m2/m1
1 5 1
1. State the relation between commercial unit of Energy and Joules.
2. How much work done on a body of mass 1 kg whirling on a circular path of radius 5m.
3. State potential energy and its SI unit also derive it.
4 State Power and SI unit.
0 0 0
Answer for 4th and 1st question pls
and r u studying IX grade in CBSE
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