Two freight cars, each with a mass of $3\mathrm{.}0$x$105$ kg$,$ collide and stick together. One was initially moving at $2\mathrm{.}2$ m$/$s$,$ and the other was at rest. What is their final speed?

Answer rating: 100% (QA)

To find the final speed of the two freight cars after the collision you can use th... View the full answer