If the quantities measured in order to verify Eq.(3) were obtained with values a
ID: 2136234 • Letter: I
Question
If the quantities measured in order to verify Eq.(3) were obtained with values as in Problem 1, estimate the fractional error (%) on the left side and on the right side of the equation based on the precision of the available equipment in class: the pulling mass is measured by slotted weights with precision of 10 gram, the rotating mass is measured by a beam balance with precision of 0.1 gram, the rotating radius is measured by a meter stick with 1mm divisions, and the period of rotation is determined by measuring the time for 20 revolutions, with 0.5 s uncertainty of that time due to the human reaction at operating a stop watch.
Explanation / Answer
on left side %error = 0.01%
on right side = 0.01+0.001+0.05 = 0.061%