A flywheel's diameter is twice that of another of the same shape ...

[audie]

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

[aprice35067]

Answer to Question 1

Answer: B

Answer to Question 2

Answer: A

[audie]

Wow, this really help

[irishcancer18]

Thanks for the timely response, appreciate it