You are holding on to the axle of a spinning bicycle wheel with one hand on either side of the wheel. The top part of the wheel is moving away from you and the bottom is moving toward you and the axle is horizontal. In what direction do you need to apply a torque for the wheel to turn to the left?
A) toward you
B) away from you
C) vertically up
D) vertically down
E) to your right

Question

Quizplus · Accepted Answer

To turn the wheel to the left, you need to apply a torque toward you, which will cause the wheel to precess to the left due to the gyroscopic effect.

You Are Holding on to the Axle of a Spinning