1. A ball with a 3.00m diameter is rolling down an inclined plane. Its period decreases from 0.0155 to 0.01 US over a 1.0 second time interval. What is its acceleration? 3. A driver who is moving at 15 m/s, sees a stop light and puts on the brakes 30 m before an intersection. a) What acceleration will the driver have to have to stop before entering the intersection? b) How much time will it take to stop the car? 4. A boy standing on a bridge spits into the water below. He hears the splash 1.5 seconds later. How high is the bridge? 5. A ball is thrown upwards at 20.0 m/s. a) How far has it traveled after 4.0 seconds