1. It is possible for a car traveling at a constant steady speed to be accelerating at the same time. Explain 2. A rolling ball begins to roll down hill and speed up. It accelerates at 2.5 m/s^2 over a time of 6 sec and travels a distance of 69 meters. How fast was the ball rolling before it went down the hill? 3. A sports car is advertised to be able to stop at a distance of 45.0 m from a speed of 21 m/s a) What is its acceleration in m/s^2? b) What is its average speed as it stops. 4. A plane touches down at the end of a runway with a speed of 130 m/s and can slow down at a rate of 6.00 m/s^2 a) From the time it touches down how much time is needed before it stops? b) What distance does the plan travel while stopping? 5. A car starts with an initial speed of 4.30 m/s and accelerates at a rate of 3.00 m/s^2 for 5.00 s a) Find the final speed b) Find the distance it travels 6. A bus travels west at 15 m/s for 20 secs. It stops to exchange passengers for 30 secs and continues west a 12 m/s for 45 seconds a) The average velocity of the bus over the entire trip if the time for the stop is 30 seconds b) Suppose the driver decides the time of the stop should be longer or shorter. How long should the stop be for the magnitude of the overall average speed of the entire motion to be 10 m/s