The tapered shape of the parts of the wheels that ride on railroad tracks allows opposite wheels to
A)in effect,vary their diameters.
B)travel at different linear speeds for the same rotational speed.
C)Both A and B are correct.

Question

Quizplus · Accepted Answer

The tapered shape of the parts of the wheels that ride on railroad tracks allows opposite wheels to vary their effective diameters, which allows them to travel at different linear speeds for the same rotational speed. This helps to reduce wear on the wheels and rails, and also improves stability and safety during curves and changes in track elevation.

The Tapered Shape of the Parts of the Wheels That