Physics 4AL 1

Physics 4AL 1 - Michael Festa Physics 4AL Experiment 1:...

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Michael Festa Physics 4AL Experiment 1: Uniform Acceleration Theory: This experiment was implemented in order to show the uniform nature of the acceleration due to gravity. According to Newton’s second law, Force is equal to the mass times its acceleration… F=ma. In this case, a glider, running along an almost frictionless air-track, is attached to a hanging mass by a pulley. The hanging mass “m” is accelerated downward with a force of “mg”, but because it is held by a string attached to the mass on the track, “M”, it is held back by a force “T”, the tension. Because there is no fiction (or very little of it), the only force that moves the block on the track is the tension. So, the force with respect to “m” is F = ma = mg – T, and the force with respect to “M” is F = Ma = T. Combining the second equation with the first gets rid of the “T” term, and leaves you with… mg = Ma + ma mg = a( M+m ) a = (mg)/(M+m) m/s^2. Thus, the predicted acceleration of this system will be found using this formula… Procedure: In the experiment, we setup a system with a hanging weight, and a connected mass which slides over a frictionless surface. The string that connects the masses together runs over a
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Physics 4AL 1 - Michael Festa Physics 4AL Experiment 1:...

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