2-24-20083

Today in class it was an early dismissal so we did not do much at all and we also had a substitute teacher because Mr. Manning was absent. We worked on a worksheet called "Energy and Roller cassters: Physics 1" The worksheed had to do with rollercoasters. It had three questions. the first question had a picture of a rollercoaster and it said, Frank, a San Francisco hot dog vendor, has fallen asleep on the job. When an earthquake strikes, his 400 kg cart rolls down Nob Hill and reaches point A at a speed of 8.00 m/s. How fast is the cart going at point B? then it said complete the chart.