Two 2 kg balls move away from each other,
one traveling 3 m/s to the right, the other
5 m/s to the left.
What is the magnitude of the total momentum of the system?
Answer in units of kg · m/s
is the equation for this p=mv?

Question

Two 2 kg balls move away from each other,
one traveling 3 m/s to the right, the other
5 m/s to the left.
What is the magnitude of the total momentum of the system?
Answer in units of kg · m/s
is the equation for this p=mv?

anonymous · Answer

Yes, thats the equation, and since the momentum is a vector, you need to consider one of the velocities negative.

anonymous · Answer

yes.., using law of conservation of momentum., ok