John and david are carrying bob on a uniform horizontal
John and David are carrying Bob on a uniform horizontal board 8.9 m long which weighs 211 N. Bob weighs 542 N and is sitting 3.4 m from John. Determine the upward force exerted by both John and David.
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john and david are carrying bob on a uniform horizontal board 89 m long which weighs 211 n bob weighs 542 n and is
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