Two 1000 kg cars drive east; the first moving
at 45 m/s, the second at 30 m/s.
What is the magnitude of the total momen-
tum of the system?
Answer in units of kg · m/s

Question

Two 1000 kg cars drive east; the first moving
at 45 m/s, the second at 30 m/s.
What is the magnitude of the total momen-
tum of the system?
Answer in units of kg · m/s

jfraser · Answer

what's the formula for momentum?

anonymous · Answer

mass times velocity

jfraser · Answer

so each car has a mass, and each car has a velocity. the TOTAL momentum of the system must be equal to the sum of the 2 individuals

anonymous · Answer

So I just add the two momentums? Even if they are going different ways

jfraser · Answer

the problem says they're moving in the same direction

anonymous · Answer

Oh ok I misunderstood the question somehow thanks :)