Which forces are contact forces give one example of each

A contact force is any force that requires contact to occur. Contact forces are ubiquitous and are responsible for most visible interactions between macroscopic collections of matter. Pushing a car up a hill or kicking a ball across a room are some of the everyday examples where contact forces are at work.

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right

i believe the answer is a hope it and is correct