Answer to Question #216725 in Classical Mechanics for deran

Classical Mechanics

Question #216725

a sphere of radius R=40 and mass M=7.2kg. calculate the moment of inertia about the axis of rotation at a distance of R from the centre of sphere.

Expert's answer

"I=\\frac 23 mr^2+mr^2=\\frac 53 mr^2,"

"I=\\frac 53\\cdot 7.2\\cdot 0.4^2=1.92~kg\\cdot m^2."

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