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    • Machinedesign Com Sites Machinedesign com Files Uploads 2013 05 298 Fundy Solution
    1. Learning Resources

    Solution to Fun with Fundamentals Puzzler: A Stupid Dream

    May 5, 2013
    How high must Thrasher start from to be able to make it safely around the loop without falling off due to gravity? Let's find out.
    Machinedesign Com Sites Machinedesign com Files Uploads 2013 05 298 Fundy Solution

    Review the problem: A Stupid Dream.

    How high must Thrasher start from to be able to make it safely around the loop without falling off due to gravity?

    Well, it 's a matter of gravitational potential energy and kinetic energy. Thrasher must start on his skateboard at least 12.5 ft. above the ground in order to complete the loop without falling off due to gravity.

    Give me the next puzzle —
    Gone to the dogs.

    Machinedesign Com Sites Machinedesign com Files Uploads 2013 05 296 Fundy Puzzle
    About the Author

    Elisabeth Eitel

    Elisabeth Eitel was a Senior Editor at Machine Design magazine until 2014. She has a B.S. in Mechanical Engineering from Fenn College at Cleveland State University.

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