solve

Parallel-Axis Theorem with Fidget Spinner The "fidget spinner\" in the image below spins around an axis at the center of the yellow circle. The 3 weighted black circles each can be approximated as a hoop with a mass of mm), and a radius of r;,. The center of each black circle is a distance of d away from the central spinning axis. The total moment of inertia of the fidget spinner is J -- ignoring the yellow plastic, which doesn't have much oO oO Solution: Look up in a table for each hoop around an axis in its center: Lhoop = 47} Use parallel-axis theorem and add up J for all 3 hoops: I = 3(mqr} + mad*) I= 3m (r2 + d*) Ea Formula 3 points = My Th d I 23.6grama 2.38m 439cm | pram - cm?