/u/datguy030's posts
According to Newton's Second Law, F=ma. Does this mean that if you drop something from an inch vs 100 meters in the air, they will both have the same force (assuming uniform acceleration)? This logically doesn't make sense to me.
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Two Physics based questions (out of curiosity): Why is it harder to bike uphill rather than walk/run? Also, why is it easier to push a shopping cart full of stuff rather than carrying it (assuming that its "carryable")
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According to Newton's 2nd Law, if I push an eraser across a table with the same force, it should keep accelerating. Why does it stay at constant speed though?
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After headbutting so much, do soccer (or football for you non-Americans) players seriously reduce their brain capacity by killing brain cells?
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When a tow-truck pulls a car, the tow-truck exerts a force on the car, causing it to move. But (because of Newton's third law), what's the opposite and equal force in this?
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Why does banking a race car road prevent fast cars from flipping over (in terms of torque and centripetal force)
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(1) If cars had normal tires, would they be able to move on a frictionless surface? (2) Would it work the other way around (frictionless tires, normal surface)? (3) How about if the tires and surface were frictionless?
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