Think of the term that fits into or defines the given statement and fill in the given boxes with the correct spellings of that term.
Work done by the force of friction on a body is always _________.

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Solution

Force of friction resists the motion taking place, causing the body to slow down or completely stop after a fixed interval of time.
So, this force always acts in the opposite direction of the displacement.
Hence, the work done by the force of friction on a body is always negative.

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