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).
What does Newton's first law of motion state? Newton's first law of motion states that an object will continue to move at a constant velocity unless acted upon by an external force. This law is also known as the law of inertia.