Which of the following is true about contact forces?

Question 1 options:

Contact forces only work by pushing.


Contact forces only work by pulling.


Contact forces require the physical contact between objects.


Contact forces work between two objects that do not touch.

Respuesta :

In physics, a contact force is a force that acts at the point of contact between two objects, in contrast to body forces. Contact forces are described by Newton's laws of motion, as with all other forces in dynamics. Contact force is the force in which an object comes in contact with another object.

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