The function h(t)=-4.9t^2+s_0 represents the approximate height (in meters) of a falling object t seconds after it is dropping from an initial height s_0 (in meters). A can is dropped from an initial height of 44.1 meters. a. After how many seconds does the can hit ground?

b. Suppose the initial height is m meters lower. How will this affect part (a)?

Think What strategies and tools will you use to solve the problem?