particle points parabola

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This problem was contributed to the Feynman Lectures Website by Sukumar Chandra.

P and Q are two points a distance d apart at heights h and k above a given horizontal plane. What is the minimum speed v with which a particle can  be projected from the horizontal plane so as to pass through P and Q?


Solutions (listed by author)

Sukumar Chandra (pdf, 75K)

Maciej Jarocki (pdf, 100K)

Adnan Nazir (pdf, 686K)

Michael A. Gottlieb (pdf, 144K)

Michael A. Gottlieb (pdf, 110K)


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