13. Rotational Inertia & Energy
Intro to Rotational Kinetic Energy
Multiple Choice
Multiple ChoiceA flywheel is a rotating disc used to store energy. What is the maximum energy you can store on a flywheel built as a solid disc with mass 8 × 104 kg and diameter 5.0 m, if it can spin at a max of 120 RPM?
A
4.83 × 106 J
B
9.87 × 106 J
C
1.97 × 107 J
D
3.95 × 107 J
696
views
5
rank
1
comments