Which among the following is not always a disadvantage of friction?
A. Friction heats up parts of machines
B. Friction produces wear and tear.
C. Friction decreases the speed of a body D. Friction makes movement difficult
Answers
Answered by
15
Answer:
Friction opposes the ______ between the surfaces in contact with each other. (b) ... Ans. (a) relative motion (b) nature (c) heat. (d) ... (i) Friction causes wear and tear in ...
Answered by
10
Answer:
bi fission produces wear and tear
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