the answer is D - a person pulling a sled...that is correct because a contact force is a push or pull on an object by another that is touching it...please mark brainiest. thanks
Answer:
A person pulling a sled
Explanation:
Contact forces are defined as the forces that needs contact to occur. The examples of contact forces are frictional force, normal force, tension force etc.
Out of given options, the event that is an example of contact force is " a person pulling a sled ". In this case, there is a direct contact between the person's hand and sled.
A leaf falling from a tree : In this case, the leaf is falling due to any reason or may be due to moving air.
A nail being attracted to a magnet : It is a property of iron to attract towards the magnet due to magnetic force.
An electric charge jumping from a sweater to a person : It is due to static electricity.
Hence, the correct option is (d).
