The speed at which water travels in a pipe can be measured by directing the flow through an elbow and measuring the height to which it spurts out the top. If the elbow height is 10 cm, the equation relating the height h (in centimeters) of the water above the elbow and its velocity v (in centimeters per second) is given by
v2 = 1960(h + 10)
(a) Solve this equation for h and graph the result, using the velocity as the independent variable.
(b) If the velocity is 210 cm/sec, what is the height of the water above the elbow?