Box a weighs 80 n and rests on a table a rope that connects, Ask an Expert

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Box A weighs 80 N and rests on a table. A rope that connects boxes A and B drapes over a pulley so that box B hangs above the table. The pulley and the rope are massless and the pulley is frictionless. What force does the table exert on Box A if Box B weighs 35 N?

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