Question

what contact force......​

Answer 1

Answer:

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. ... Molecular and quantum physics show that the electromagnetic force is the fundamental interaction responsible for contact forces.

Explanation:

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Answer 2

Answer:

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. ... Molecular and quantum physics show that the electromagnetic force is the fundamental interaction responsible for contact forces.