Question

friction is a ___ force; gravity is a ___ force; contact/contact contact/non contact non contact/non contact non contact/contact question 2 1 pts which type of friction is best described as the force between objects that are moving? sliding friction kinetic friction rolling friction static friction

Explanation:

Friction occurs when two surfaces are in contact, so it is a contact force. Gravity acts between objects without them needing to be in physical contact, so it is a non - contact force. Sliding friction is the force between two surfaces that are moving relative to each other. Kinetic friction is a general term for friction when an object is in motion, but sliding friction is more specific for two surfaces sliding against each other. Rolling friction is for objects rolling and static friction is for stationary objects.

Answer:

Question 1: B. Contact/Non Contact
Question 2: A. sliding friction