Author Question: A flywheel's diameter is twice that of another of the same shape and mass. Rotational inertia of the ... (Read 29 times)

audie · **on:** Jul 29, 2018

A flywheel's diameter is twice that of another of the same shape and mass. Rotational inertia of the larger flywheel is

A) two times greater.
B) four times greater.
C) the same as the other's.
D) half.

Question 2

A ring and a disk both at rest roll down a hill together. Which rolls slower?

A) ring
B) disk
C) depends on the masses
D) both roll at the same speed
E) need more information