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pect to the EXPERIMENT 6 2 Name 2. don 1. ate the cenarigetal fotce from the theory, using the average speed of rotation obtained in Calcula- 3185.4736 (0.156 Ks)(0.05m) (60. 44 (0,0072) (3,155.4736): a4.85 天 ( 3. Compare the caleulared value of the centripetal force with the value measured directly, computing the percent discrepancy
Totel w lo.IG 3.050)x 9ro 995 30 UNIFORM CIRCULAR MOTION PROCEDURE sensitive indicator index. Do not let this speed be exceeded. Begin the pointer of the which the critical speed for Adjust the speed of the rotator and keep it constant at the of the centripetal force apparatus stands exactly opposite the thar che pointer is ept poe the index: Keep oh adjusting the speed very gradually dangerous to let e index, vibrating about this position as little as possible. CAUTION: speed and gradually increase the speed until during the experiment so by adjusting the variable speed rotator to a low Ar the sred of roation with the revolution counter and a stop watch. First record the reading of nse e countet and set the stop watch going. To perform the experiment to let one observer pay strict attention to the proper, adjustment of the apparatus rotate at excessive speeds. 2. counter. At the proper instant more coavenienty. rt gst the end of exactly one miue of the speed by manipulating the stop watch and the revolution weight necessary to mak is a good plan other observer can r and record the reading. 3. Repeat Procedure 2 and take three more readings of the speed. 4. Remove the apparatus, suspend it on a supporting stand, and determine the index and pointer coincide. Include the weight of the rotating mass the total force needed to stretch the spring computin and of the iweight hanger in s. Measire the radius of rotation of the mass, using the vermier caliper, by measuring the distance axis of rotation to the center of the hass. Do this before removing the weight so that the mass will be in th same posicion it oçéupies during rotation when you make the measurement. 3000.50 3k 5 DATA Weight of the rotating mass Weight applied to the spring Total weight necessary to stretch the spring .15o KoAverage speed of rotation 2.o523 Centipetal force calculated from the 4.8s 3112 Measured value of the centripetal force Radius of rotation 0Sm Percent discrepancy Readings of the Retolution Cognter At the Beginelag At the Ead l Speed of Rotation CALCULATIONS 1. From the data of Procedures 2 and 3 calculate the speed of rotation for each set of readings. Com the ayerage speed of rotation. 0.004995
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