Question

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 moving body.
D. friction makes movement difficult.
Please answer it fast........​

Answer 1

Answer:

D) is the answer because if friction would not be there we would have floating in air ..

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Answer 2

Answer:

I think (d) will be the answer.As friction not causes movement difficulty.

Explanation:

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