What is the momentum of a two-particle system composed of a 1500 kg car moving east at 30 m/s and a second 900 kg car moving west at 25 m/s? Let east be the positive direction. Answer in units of kg · m/s.

P = 22500 kg. m/s

Explanation:

Mass of particle 1, M = 1500 kg

speed of car in east, v = 30 m/s

Mass of another particle, m = 900 Kg

speed of car in west, v' = 25 m/s

east direction is positive

momentum of the particle when they are a system.

P = P₁ + P₂

P = M v + m v'

P = 1500 x 30 + 900 x (-25)

P = 22500 kg. m/s

The momentum of two particle system is equal to P = 22500 kg. m/s