Question:
A 757 kg train car moving with a speed of 12.6 m/s to the
Last updated: 7/25/2022
![A 757 kg train car moving with a speed of 12.6 m/s to the](https://media.kunduz.com/media/sug-question/raw/77081531-1658775028.4665143.jpeg?h=512)
A 757 kg train car moving with a speed of 12.6 m/s to the right, crashes into a 2nd 1269 kg train car moving with a speed of 3.8 m/s to the right. The trains lock up and move together. What is the speed of the combined train cars?