Question

help?

Answer 1

ok with what

Answer 2

In a closed system, a cart with a mass of 1.5 kg is rolling to the right at 1.4 m/s, while another cart of mass 1.0 kg is rolling to the left at the same speed. What is the total momentum of the system of two carts?
(Points : 1)
0.0 kgm/s

0.50 kgm/s

0.70 kgm/s

3.5 kgm/s

Answer 3

the momentum i think is equal to m*v for m - mass and v - speed
so you get 1.5 kg*1.4m/s + 1 kg*1.4m/s=2.5kg*1.4m/s=3.5 kgm/s
it's more of newtonian mechanic question, not a math one
the answer is 3.5 kgm/s