Steven Akdemir Physics 111A Prof Yan Liu Antonio Nigro...

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Steven Akdemir Physics 111A Prof. Yan Liu Antonio Nigro, Bassam Hinnawi, Alexander Puchalski, Matthew Jeffers March 8, 2016 Lab 114 Uniform Circular Motion Introduction: We performed this lab with two objectives in mind: to study the motion of a body traveling with constant speed in a circular path, and to verify the expression for centripetal acceleration and centripetal force. Procedure: Before beginning the experiment, we made sure that we had everything on our equipment list, which was: centripetal force apparatus, a standard set of weights, a weight hanger (50 g), a stop watch, a caliper, a ruler, a bubble level, and a digital scale. To begin, we adjusted the three legs of the base on the centripetal force apparatus to keep it horizontal, and ensured this with the help of the bubble level. Next, we measured and recorded the weight of the mass of the weight that would undergo the circular motion in the experiment. We then set the radius of rotation by adjusting the position of the radial indicator rod (distance from top of radius indicator rod to axis of vertical shaft), and adjusted the position of the cross-arm so that the revolving mass would hang freely just over the indicator when the spring is detached. We determined the static force required to displace the mass to the same radial position by passing a string over the pulley with one end of the string hooked at the revolving mass and the other end at the weight hanger with weights added.
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After this, we were finally able to begin the experiment. We revolved the vertical
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