You are riding a bicycle into a strong head wind, but manage to keep moving in a straight line at a constant speed. The net force on you is
A) 0
B) in the direction of your motion
C) in the direction tie wind is pushing you (backwards)
D) downward due to your weight

Question

Quizplus · Accepted Answer

When you're moving at a constant speed in a straight line, it means there's no net force acting on you. This is due to Newton's first law of motion, which states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. In this scenario, the force you apply to pedal the bicycle forward exactly balances the force of the headwind pushing against you, resulting in a net force of 0.

You Are Riding a Bicycle into a Strong Head Wind