Wich of the following is Not True about sliding Friction ?
a.It may be reduced by using lubricant
b.it is due to the roughness of surface in contact
c.it is present whenever two bodies are in contact
d.it is present only when bodies in contact are moving or have a tendency to move
a.It may be reduced by using lubricant
b.it is due to the roughness of surface in contact
c.it is present whenever two bodies are in contact
d.it is present only when bodies in contact are moving or have a tendency to move
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Answer:
b. it is due to the roughness of surface in contact
Answer:
b
Explanation:
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