1. A train on the Bay Area Rapid Transit system has the ability to accelerate to 80 miles/hour in half a minute.
A. Express the acceleration in miles per hour per minute.
B. Starting from rest, how fast does one of the trains move after 20 seconds?
2. An 1100-kilogram automobile loses speed at a rate of 0.5 meters/second per second. What is the net amount of work on the automobile as it moves a distance of 800 meters.