5. a. The height of a soccer ball after it is kicked into the air is given by h(t) = -4.9t + 3.5t + 1, where h is the height, in meters, and t is the time, in seconds. Use the First Principle Method to determine the rate of change of the height of the soccer ball at time t. b. Determine the rate of change of the height of the soccer ball at 0.5 s. C. When does the ball momentarily stop? What is the height of the ball at this time.