..... acts only between surfaces that are in contact.

PHYSICAL SCIENCES

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

____ acts only between surfaces that are in contact.

A	Inertia
B	Friction
C	Gravity
D	A net force

Explanation:

Detailed explanation-1: -Frictional force acts only when two surfaces are in contact with each other. It is a contact force which opposes the relative motion of an object.

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