9. Motion over a surface will cause least friction on the__
a. surface of a thick rug
b. bottom of a new snicker
c. grooved surface of a car tire
d. wet surface of a soap bar
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9. Motion over a surface will cause least friction on the__
a. surface of a thick rug
b. bottom of a new snicker
c. grooved surface of a car tire
d. wet surface of a soap bar
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Answer:A- surface of a thick rug
Explanation: Friction is more lmore likely to occur on a smooth surface.
Answer:
D. wet surface of a soap bar.
Explanation:
The person above me is right that friction is less on smooth surfaces. BUT, a rug is definitely NOT a smooth surface, thus it will produce more friction. And we know that a soap bar is really smooth when it is wet. So, friction is observed the least on the surface of a wet soap bar.
I hope this helps.