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QUESTION
A man wishes to pull a crate 15m across a rough floor by exerting a force of 100 N. The coefficient of kinetic friction is 0.
A man wishes to pull a crate 15m across a rough floor by exerting a force of 100 N. The
coefficient of kinetic friction is 0.25. For the man to do the least work, the angle between the
force and the horizontal should be:
