Problem $11\mathrm{.}52-$ Enhanced $-$ with Hints and Feedback

Part A

What spring constant should you specify?

Express your answer with the appropriate units.

You have been hired to design a spring$-$launched roller coaster that will carry two passengers per car. The car goes up a $13-$m$-$high hill, then descends $15$ m to the track's lowest point. You've determined that the spring can be compressed a maximum of $2\mathrm{.}3$ m and that a loaded car will have a maximum mass of $420$ kg $.$ For safety reasons, the spring constant should be $\backslash (11\backslash \%\backslash )$ larger than the minimum needed for the car to just make it over the top.

Correct

Part B

What is the maximum speed of a $370$ kg car if the spring is compressed the full amount?

Express your answer with the appropriate units.

View Available Hint$($s$)$

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