Question: ( 3 0 ) A mechanical speed control works on the basis of centrifugal force, which is related to angular velocity by the formula F

(30) A mechanical speed control works on the basis of centrifugal force, which is
related to angular velocity by the formula F=mr2, where F is the force, m is the mass
of the rotating weight, r is the radius of rotation, and is the angular velocity of the
system. The following specifications are given for the measurement system:
Mass (m):0-200g range, accuracy +-4% of reading
Radius (r): 0-50mm range, accuracy +-2% of reading
Angular speed () : 0-1000 rad/s range, accuracy +-3% of reading
(a)(12) Calculate the systematic uncertainty in force measurement (in N ) due to the
measurement devices for measured values of 160g,25mm, and 600rads.
(b)(13) In logging data with a high sampling rate, the calculated standard deviation
of large number of readings are 5g,0.6mm, and 12rads, respectively, while the
mean values are 160g,25mm, and 600rads. Determine the random uncertainty
of the force measurement (in N), at a 95% confidence level.
(c)(5) What is the total uncertainty in the force measurement (in N )?
( 3 0 ) A mechanical speed control works on the

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