You have designed a control for railroads for changing the direction of the tracks. In order to make this change, a great deal of force is required to move the track. Thus, to be most effective, you designed the control to be manipulated by
A) Your elbows.
B) Your feet.
C) Your fingers.
D) Your hands.

Question

Quizplus · Accepted Answer

Your feet can exert more force than your hands, fingers, or elbows, making them the most effective choice for manipulating a control that requires a great deal of force, such as changing the direction of railroad tracks.

You Have Designed a Control for Railroads for Changing the Direction