True or False: Drag and tailwind are examples of a contact force.
false
True. They are both contact forces that act on objects in direct physical contact with each other. Just like when someone accidentally steps on your foot and you feel a strong drag force pulling you back. Or when you stand outside on a windy day and feel a tailwind pushing you forward, making it even harder to walk in a straight line. It's kind of like the universe's way of pranking us.
False. Drag and tailwind are not examples of contact forces.
Contact forces involve physical contact between two objects and include forces like friction, normal force, and applied force. Drag force, on the other hand, is a non-contact force that opposes the motion of an object through a fluid (like air or water). Tailwind, on the other hand, is the wind blowing in the same direction as the object's motion, which is not a force but rather a boost to the object's speed.
To determine if drag and tailwind are examples of a contact force, we first need to understand what a contact force is. A contact force is any force that requires direct physical contact between objects or substances.
Drag is the force exerted by a fluid (such as air or water) on an object that opposes its motion through the fluid. This force is not a contact force because it does not require direct physical contact between the object and the fluid. Rather, it is caused by the interactions between the object and the fluid molecules.
On the other hand, a tailwind is a wind blowing in the same direction as the movement of an object, such as an aircraft or a cyclist. Like drag, a tailwind is not a contact force because it does not require direct physical contact between the wind and the object. It is simply the movement of the air itself.
Therefore, both drag and tailwind are not examples of contact forces. The statement is false.