A water jet shoots short spurts of water over a walkway. The water spurts reach a maximum height, then come down into a pond of water on the other side of the walkway.
The height of the water t seconds after leaving the jet is given by the quadratic equation S = - 161 + 48t. Find the time it takes for the spurt of water to return to the jet's
height, that is, when S= 0.
