Raaid you are posing questions that a lot of kids ask when taught Newtons Laws and formulae such as F=MA. eg, brighter kids will ask - "so, in the void of space, where there is no air or friction why can't a space ship reach the speed of light?" and we end up with all sorts of difficult concepts such as 'uniform acceleration in a straight line', etc, etc........at which point kids either decide to study and take exams in something more easily understood......
And, amid this you have the laws of 'conservation of energy' and Friction has to obey this law regards the energy input and useful energy out. E.g, a car accelerating will create more internal/external friction, more heat energy, probably more sound, and the useful energy is ever diminishing.
05-13-2012, 02:52 PM
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