Question

Is friction negative or positive ​

Answer 1

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Answer 2

Answer:

Work done by friction is always either zero or negative.

Explanation:

As friction acts in the direction opposite to the direction of motion of an object, it provides negative force to the object.

Or when the object is resting, friction is 0.

So, the work done by friction is always either 0 or negative.

In other sense, friction is always negative while am object is in motion.

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