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A Theme park wants to build a roller coaster with the maximum velocity of 33.5 MS (75 mph ) how high Must the first hill be in order to reach the maximum velocity?

Sagot :

We will determine the height as follows:

First, we determine the time it will take to get from 0m/s to 33.5m/s using gravity, that is:

[tex]\begin{gathered} 33.5m/s=(0m/s)+(9.8m/s^2)t\Rightarrow t=\frac{33.5m/s}{9.8m/s^2} \\ \\ \Rightarrow t=\frac{335}{98}s \end{gathered}[/tex]

Now, we determine the height of the roller coaster:

[tex]\begin{gathered} h=(0m/s)(\frac{335}{98}s)+\frac{1}{2}(9.8m/s^2)(\frac{335}{98}s)^2\Rightarrow h=\frac{22445}{392}m \\ \\ \Rightarrow h\approx57.26m \end{gathered}[/tex]

So, the height of the roller coaster must be approximately 57.26 m.