When the oil from a circular cylinder leaked, the formula for the speed of the leak is V = kh^2, where h was the height of the remaining oil and k was constant. If the height of the cylinder is 4, the speed of the leak is Vâ€™, When the height of the oil remaining is 12, what was the speed of the leak, in terms of Vâ€™?
Pick one
A) 9Vâ€™ B) 4Vâ€™ C) Vâ€™/2 D) Vâ€™/4 E) Vâ€™
When h=4 v=V'   So V' = k.16   Hence k = V'/16   Now when h=12   v=(V'/16).12^2   v=V'.144/16   v=9V'   9Vâ€™ns : 9Vâ€™
<result>A</result>
When the oil from a circular cylinder leaked, the formula for the speed of the leak is V = kh^2, where h was the height of the remaining oil and k was constant. If the height of the cylinder is 4, the speed of the leak is Vâ€™, When the height of the oil remaining is 12, what was the speed of the leak, in terms of Vâ€™?