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Why do Mountain Roads Spiral?

It is possible to reach the top of very high mountains across the globe by automobile. Obviously the most direct path and route of shortest time would be an incredible steep straight shot up. 115 more words

Flower Pot Bouncing

Say you were to be standing beneath a shelf holding a large flower pot. Someone hits the wall that results in the flower pot falling off of the shelf. 160 more words

Application of Newton's Third Law

This strong man is suspended between two freight cars of equal mass. As much as he might try, it will be impossible for him to push one car with more force and give it a greater speed than the other freight car. 85 more words