Two bumper cars each have a mass of 112 kg. Connie's car is moving at 3.12 m/s, and Bonnie's car is at rest when Connie runs into her. After the collision, Bonnie's car lurches forward at a speed of 1.32 m/s. Connie has a mass of 70 kg, and Bonnie has a mass of 82 kg. What is the post collision speed of Connie's car?

Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.