PHYS 101 Pre-Lab #1

# PHYS 101 Pre-Lab #1 - This pulley will remain isolated...

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9/19/07 PHYS 101-20 Lab #1 – Vectors, Forces, and Equilibrium Objective : To give an intuitive example of forces in equilibrium. An object that is not accelerating falls into one of two categories. It is either subjected to a number of different forces which cancel each other out, or no forces at all. This specific category of physics is called statics. The sum of all forces is equal to the mass of the object multiplied by the acceleration of the object, as stated in Newton’s Second Law of Motion. Σ F į = ma sum of all forces = mass * acceleration Σ F į = 0 sum of all forces = zero Begin by placing two pulleys on a force table. The first pulley should be placed at zero degrees with one hundred grams attached to the mass hanger, located at the end of the pulley’s string.
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Unformatted text preview: This pulley will remain isolated throughout the duration of the experiment. The second pulley, also with one hundred grams attached, may be put anywhere as long as it is placed in such a position so that when the center pin is removed, the center ring will not move. Record the angle at which this second pulley rests. Next, the previously mentioned step will be repeated with one main alteration. This time, instead of using one pulley to counter the force of the first, use two pulleys with the same one hundred grams attached to each mass hanger. Record the positions of these pulleys in terms of degrees as well. Finally, repeat the previous step once more with three separate pulleys instead of two and then record their angular positions....
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