A 1200 kg sedan is traveling at 10m/s when it is hit from behind by a 1000 kg convertible. The bumpers of the cars crush and lock. Their combined speed just after the crash is 16 m/s. What is the velocity of the convertible before the collision? Please show your work.

Answer 1

momentum is conserved

total momentum = sedan + convertible

(1200 + 1000) 16 =
... (1200 * 10) + 1000 v