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 2, the speed of the leak is Vâ€™, When the height of the oil remaining is 10, what was the speed of the leak, in terms of Vâ€™?
Choose the correct choice: A) 2Vâ€™ B) 25Vâ€™ C) Vâ€™/2 D) Vâ€™/4 E) Vâ€™
When h=2 v=V'   So V' = k.4   Hence k = V'/4   Now when h=10   v=(V'/4).10^2   v=V'.100/4   v=25V'   Ans : 25Vâ€™
<result>B</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 2, the speed of the leak is Vâ€™, When the height of the oil remaining is 10, what was the speed of the leak, in terms of Vâ€™?