• Machinedesign Com Sites Machinedesign com Files Uploads 2013 05 298 Fundy Solution

    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.

    Continue Reading

    Sponsored Recommendations

    June 27, 2025
    Ensure workplace safety and compliance with our comprehensive Lockout/Tagout (LOTO) Safety Training course. Learn critical procedures to prevent serious injuries.
    June 27, 2025
    Join our expert webinar to discover essential safety control measures and best practices for engineering a truly safe and compliant industrial environment.
    June 25, 2025
    An innovative aircraft with electric drives combines the best of both worlds. The cross between drone and helicopter could mean significantly faster and more efficient air emergency...
    June 25, 2025
    Effective when other materials fail, ceramics are particularly suitable for applications requiring wear and chemical resistance, sliding characteristics or biocompatibility. Discover...

    Voice your opinion!

    To join the conversation, and become an exclusive member of Machine Design, create an account today!