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Friction and air resistance are forces that always:

1.) Balance out, having no effect on the net force.

2.) Act in the opposite direction to an object's motion, tending to slow it down.

3.) Pull objects down towards the center of the Earth.

4.) Cause objects to speed up.

User Jobi Mg
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1 Answer

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2 act in the opposite direction. To an objects motion, tending to slow it down
User Csalive
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