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what is true about the amount of friction on the material from each to the two surface are made the harder the surface the more friction is produced b the softer the surface the more friction is produced c rougher the surface the more friction is produced d the wet floor produced more friction ​

Sagot :

Answer:

Friction is a force that opposes relative motion between systems in contact. One of the simpler characteristics of friction is that it is parallel to the contact surface between systems and always in a direction that opposes motion or attempted motion of the systems relative to each other.

Explanation: