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What is the main difference between a contact force and a non-contact force?
A.
A contact force works by touching another object, while a noncontact force does not.
B.
A contact force works without touching another object, while a noncontact force does not.
C.
A contact force pushes an object, while a noncontact force pulls an object.
D.
A non-contact force pushes an object, while a contact force pulls an object.
A non-contact force is a force which acts on an object without coming physically in contact with it. The most familiar non-contact force is gravity, which confers weight. In contrast a contact force is a force applied to a body by another body that is in contact with it.
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