The two cyclists travel at the same speed on level ground. They approach a low hill and decide to coast up instead of hard pedaling. At the top of the hill, which of the two bikes will have a larger speed? Assume no friction nor air resistance, and all the wheels roll on the ground without slipping.

a. The same speed; conservation of angular momentum.

b. The masses are necessary to answer this.

c. The same conservation of energy.

d. Bike B; its wheels have a larger moment of inertia.

e. Bike B; its wheels have a smaller moment of inertia.

Question

Alejandro Velasquez

Physics

28 June, 04:57

The two cyclists travel at the same speed on level ground. They approach a low hill and decide to coast up instead of hard pedaling. At the top of the hill, which of the two bikes will have a larger speed? Assume no friction nor air resistance, and all the wheels roll on the ground without slipping.

a. The same speed; conservation of angular momentum.

b. The masses are necessary to answer this.

c. The same conservation of energy.

d. Bike B; its wheels have a larger moment of inertia.

e. Bike B; its wheels have a smaller moment of inertia.

+3

Answers (1)

Know the Answer?

Ashlynn Miller · Answer 1

Option - (E) : Bike B; its wheels have a smaller moment of inertia.

Explanation:

The two cyclists travel at the same speed on level ground, as they approach a low hill and decide to coast up instead of hard pedaling. At the top of the hill, as bike "B" will have a larger speed, as compared to the bike "A". Due, to the effect of having smaller moment of inertia, I=m*r². Having no friction nor air resistance, and all the wheels roll on the ground without slipping. While, the B have larger speed, v due to the fact that bike "B" will have a larger speed,"v" as compared to the bike "A".