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A 60 kg sofa 4m long is carried by James and Sarah. James is holding the...

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Physics

A 60 kg sofa 4m long is carried by James and Sarah. James isholding the sofa 0.2m from an end. Sarah is holding the sofa by theother end. A passing moron places a 40 kg box of books on the sofa0.5m from the end Sarah is holding. How much weight is sarahholding now.

Answer & Explanation Solved by verified expert
3.7 Ratings (525 Votes)
Weight of sofa Ws mg 6098 588 N Weight of books Wb mg 4098 392 N length of sofa 4 m So center of mass of sofa will be at 2 m James is at 02 from an end So he is 18    See Answer
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