Question

to improve the performance of a racing bicycle, the mass of the tires and rims is reduced so there is _____________.
more rotational inertia
less rotational inertia
less friction
less air resistance

Explanation:

Rotational inertia depends on mass and its distribution. Reducing the mass of tires and rims decreases rotational inertia, making it easier to change the rotational motion of the bicycle wheels. Air - resistance and friction are not directly related to the mass of tires and rims in this context.

Answer:

B. less rotational inertia