A Bike Rider Facing Wind Force

A bike rider was moving to the right at a constant speed. Suddenly the wind then starts blowing against her with 3 N of force to the left. What is happening the moment the wind starts blowing?

A. The bike rider will start to speed up

B. The bike rider will continue at a constant speed

C. The bike rider instantly start moving will get blown back to the left

D. The bike rider will begin to slow down

Answer:

The correct option is D

Explanation:

This question can be better understood when discussed using the Newton's first law of motion which states that an object would continue to move with a uniform speed (in a straight line) unless acted upon by an external force. What happens here (in the question) is that the bike rider would have continued moving at a constant speed (to the right) if not for the opposing force of the wind that acted against her (to the left). This wind/force would cause her speed to reduce or slow down (as posited by the law).