A 13 g toy car moving to the right at 22 cm/s

Question

has a head-on nearly elastic collision with a
22 g toy car moving in the opposite direction
at 30 cm/s. After colliding, the 13 g car moves
with a velocity of 43 cm/s to the left.
Find the speed of the second car after the
collision.
Answer in units of cm/s

Answer 1

M1*V1 + M2*V2 = M1*(-0.43) + M2*V.
0.13*0.22+0.22*(-0.30)=-0.43*0.13 + 0.22V.
V = ?

Multiply your answer by 100 to convert to cm/s.

Answer 2

8.4090