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Problem of the Month

Do you want to win a prize and score bragging rights for a month? Are you a first or second year student preparing for quals and want some more practice? Are you a senior student looking to brush up on some physics outside of what you usually do? Or maybe you’re the kind of person who sees a good problem and can’t possibly continue on with your day without solving it? Whatever your reason, you’ve come to the right place. Check out our most recent problem of the month below!

Prizes: Past prizes include $20 gift card to Zingerman's Deli, $20 gift card to Literarti Books and your choice in pizza toppings at the AP Seminar.

Submission Info: Submit a PDF of your solution to: The submission deadline is always the last day of the month, by 11:59pm. Typed solutions are preferred, but handwritten solutions will also be accepted if they're legible. The winning solution will be chosen by Prof. Kurdak shortly thereafter. Solutions will be judged on their correctness, clarity, thoroughness, and creativity.

Other Information: Have any questions about the problem? Ask them at APProblemOfTheMonth (at) This contest is open only to AP students. You can work with other students if you'd like, but please indicate that in your submission. Do you have other problems you'd like to suggest that we use in the future? Email us them too!