Question

Just need the answer A, B , C or D

Answer 1

A. 2.25 feet.

Step-by-step explanation:

We know the following equation:

`v=\sqrt[]{2gh}`

Where v is the speed, g is the gravity and h is the height. So, replacing v by 12 feet per second and g by 32 feet per second square, we get:

`12=\sqrt[]{2(32)h}`

So, solving for h, we get:

`\begin{gathered} 12=\sqrt[]{64h} \\ 12^2=(\sqrt[]{64h})^2 \\ 144=64h \\ (144)/(64)=(64h)/(64) \\ 2.25=h \end{gathered}`

Therefore, the answer is A. 2.25 feet.