Two Uniform Solid Balls, One of Radius R and Mass

question 86

Multiple Choice

Two uniform solid balls, one of radius R and mass M, the other of radius 2R and mass 8M, roll down a high incline. They start together from rest at the top of the incline. Which one will reach the
Bottom of the incline first?

• A) The large sphere arrives first.
• B) The small sphere arrives first.
• C) Both reach the bottom at the same time.