Pls answer correctly, if not sure write not sure
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Answer:
i think it should be sliding friction
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Answer:
static friction
Explanation:
When a duster is rubbed on a white board to rub (clean) the white board of whatever is written on it, then friction acting on the duster is kinetic friction acting on the whiteboard is static work done by friction acting on the whiteboard is negative work done by friction acting on the duster is negative.
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