The apparatus was spun and the angular velocities measured were 10.47 rad/s, 14.40 rad/s and 15.76 rad/s. Then, using these values ​​and the equation F=mV^2/R, we once again calculated the centripetal force and the values ​​were 4.39 N, 8.29 N and 9.94 N. These results were compared with the measured results, which were 3.44 N, 7.15 N, and 8.41 N. Since these values ​​did not perfectly match the calculated value, we found the percentage error, and these values ​​were -.28, -.16, and -. 18. So we took the average of all 9% errors obtained and a value of -0.17. This number wouldn't be considered the best number but it's not that bad. The reasons why the error may be a little high may be due to factors such as friction and air