Which of the following statements about the concept of solid friction is NOT true?
a
It always acts in the direction of motion
b
It causes wear and tear in car tyres
c
It depends on the nature of the surfaces in contact
d
It is independent of the area of the surfaces in contact.
e
It reduces the efficiency of the machine
Explanation
Correct Option
aNo explanation available
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kemvic2003
2 months ago
Friction acts opposite to the direction of motion.
Therefore A is the correct answer
