Total # Posts: 2
An automobile and train move together along parallel paths at 21.8 m/s. The automobile then undergoes a uniform acceleration of −4 m/s 2 because of a red light and comes to rest. It remains at rest for 19.1 s, then accelerates back to a speed of 21.8 m/s at a rate of 3 m...
September 26, 2012