While spinning down from 500 rpm to rest, a flywheel does 3.9 kJ of work. This flywheel is in the shape of a solid uniform disk of radius 1.2 m. What is the mass of this flywheel?
A) 5.2 kg
B) 4.0 kg
C) 3.4 kg
D) 4.6 kg

Question

While spinning down from  500 rpm to rest, a flywheel does  3.9 kJ of work. This flywheel is in the shape of a solid uniform disk of radius  1.2 m. What is the mass of this flywheel?
A)  5.2 kg
B)  4.0 kg
C)  3.4 kg
D)  4.6 kg

Quizplus · Accepted Answer

The Answer of While spinning down from  500 rpm to rest, a flywheel does  3.9 kJ of work. This flywheel is in the shape of a solid uniform disk of radius  1.2 m. What is the mass of this flywheel?
A)  5.2 kg
B)  4.0 kg
C)  3.4 kg
D)  4.6 kg

While Spinning Down from 500 Rpm to Rest, a Flywheel