A flywheel with a very low friction bearing takes 1.6 h to stopafter the motor p

Question

A flywheel with a very low friction bearing takes 1.6 h to stopafter the motor power
is turned off. The flywheel was originally rotating at 41 rpm. Whatwas the initial rotation rate in radians per second? Answer inunits of rad/s. How many revolutions does the flywheel make beforeit stops? Answer in units of rev. Three spherical masses arelocated in a plane. A has mass 8 kg, B has mass13.8 kg, and C has mass 27 kg. Calculate the moment ofinertia (of the
three masses) with respect to an axis perpendicular to the xy planeand passing through
x = 4 m and y = 6 m. Assume the masses are point particles; e.g.,neglect the contribution
due to moments of inertia about their center of mass.
Answer in units of kg · m2

Explanation / Answer

t = 1.6 hr, = 41 rpm = 41*2/60 rad/s = 41.9 rad/s = t/2 = 41 rev/min * 1.6 * 60 min/2 = 1968revolutions please give the coordinates the three masses to find the moment ofinertia.

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