Question: A man moves a vacuum cleaner 1 . 1 m forward and 1 . 1 m backward 3 0 0 times while cleaning a floor,

A man moves a vacuum cleaner 1.1 m forward and 1.1 m backward 300 times while cleaning a floor, applying a force of 40 N during each motion. The pushes and pulls make an angle of 60\deg with the horizontal. How much work does the man do on the vacuum cleaner?

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