(Off Topic Physics ) A metal sphere with a mass of 80.0g rolls along frictionless surface at 20.0m/s and strikes a stationary sphere having a mass of 200.0g. The First sphere stops completely. At what speed does the second sphere move away from the point of impact?

Question

anonymous · Answer

There's conservation of linear momentum.  So solve an equation where the momentum before is equal to the momentum after.

anonymous · Answer

why don't you just join the physic group and ask your question there?  This is the mathmatics group.

anonymous · Answer

if no one answers in physics group, you can ask people in math chat if they could help you with physics instead of posting off topic here