A truck weighing 3 tons and a passenger car weighing 1.2 tons collided. As a result of the impact, the truck began

A truck weighing 3 tons and a passenger car weighing 1.2 tons collided. As a result of the impact, the truck began to move with an acceleration of 5 m / s2. With what acceleration did the passenger car move immediately after the accident?

Given:
m gr. avt = 3t
m light car = 1.2 t
a gr. avt = 5 m / s2
Find: a   leg.aut -?
Decision:
F group car = F light car = a group car * m group car
F gr.aut = F light auto = 5 m / s2 * 3000kg = 15000N
a = F / m
a = 15000N / 1200kg = 12.5 m / s2
Answer: 12.5 m / s2