Question

friction different surface does affect
the speed ?
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Answer 1

Explanation:

Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.

Answer 2

Answer:

#hope it helps u

Explanation:

• When a force makes something move, it will travel a certain distance in a measurable amount of time. This determines its speed. It will keep moving until it is acted upon by force or friction.
• Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.