Answer:
The 1200 kg car
Explanation:
because it has a lot less weight to keep it still
mass of car 1 = 2000 kg
speed of car 1 = 15 m/s
mass of car 2 = 1200 kg
car 2 is initially at rest.
Impulse (F Δt) = change in momentum = Δ(mv)
Change in Momentum depends on the mass and velocity.
When car 1 collides with car 2, car 1 would under go greater change in the momentum because it has greater mass and initial velocity while car 2 has smaller mass and is initially at rest. is the answer to the question