Chapter 9, Problem 4MCQ

Suppose that two bicycles have equal overall mass, but one has thin lightweight tires while the other has heavier tires made of the same material. Why is the bicycle with thin tires easier to accelerate?

a. Thin tires have less area of contact with the road.

b. With thin tires, less mass is distributed at the rims.

c. With thin tires, you don’t have to raise the large mass of the tire at the bottom to the top.