A Formula is an expression or equation that expresses the relationship between certain quantities.
For Example, A = pr2 is the formula to find the area of a circle of radius r units.
From this formula, we can know the relationship between the radius and the area of a circle. The area of a circle varies directly as the square of its radius. Here p is the constant of variation.
A. 64 ft/sec
B. 128 ft/sec
C. 16 ft/sec
D. 32 ft/sec
Correct Answer: D
Step 1: Substitute h = 16 in the Formula .
Step 2: We get, V = 32 ft/sec for h = 16 ft.