Purpose: The purpose of this experiment was to measure the velocity of mingled objects in freefall. Upon completion of this lab one will be suit subject to calculate the values for quickening and the exercise of wrinkle resistance. Apparatus: 2m fix plastic tube Acculab sonic ranger (speed of sound = 343 m/s period = 0.03 seconds) SensorNet software system Macintosh computer with system 6.07 or later dummy 3.5 HD Macintosh formatted disk Electronic intensity scale, calipers Various objects to crepuscule Procedure For the first gear part of sample 1 we dropped collar objects of the corresponding shape, but of varying good deal. To heighten accuracy, we performed three trials for each object. The first object we dropped was a 301 gram clump of universal gas constant 1.85 cm, followed by a 225 gram goon with radius 1.82 cm, and finally a 20 gram goon of radius 1.81 cm. From this information we were able to derive the softwood densities of the objects. mass density = mass/((4/3)pR3 ) We recorded the germane(predicate) data and evaluated the average quickening by means of the vend of the velocity graph.
From the following comparison we determined the magnitude of the scratch force acting on the object: Force net = mass x acceleration = Force gravity + Force air resistance Next, we metric the errors and uncertainties: mean = 1/N [t1 + t2 + ... + tN] º 1/N S ti s = [1/N S (mean - ti )2]1/2 For the next part of Experiment 1, we simply conducted three trials for a ping pong ball of mass 20 grams and radius 1.81 cm. We followed the same basic use as above. Upon completion of three trials, we compared! the data collected for the soft object with that of a obtuse object. The method used in Experiment 2 is a lot... If you want to get a full essay, order it on our website:
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