Question

question 13
classify the force that exists between a persons hand and a doorknob as they open a door.
contact force
non - contact force
im not sure
question 14
classify the force that exists between two magnets that repel one another.
contact force
non - contact force
im not sure

Explanation:

• Question 13: When a person's hand opens a doorknob, there is physical contact between the hand and the doorknob. Contact forces require physical interaction between objects.
• Question 14: Magnets repel each other without physical contact. Non - contact forces act at a distance, and magnetic force is an example of a non - contact force.

Answer:

• Question 13: Contact force
• Question 14: Non - contact force