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## Homework Statement

A box weighing 68 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end.Determine the force that the table exerts on the box when weight hanging on the other side of the pulley is 27N.

## Homework Equations

laws of motion

## The Attempt at a Solution

draw free body diagram, fillin law, mg=27n

i have 2 divide mg by g to get m since the box does not move yet its accleration is 0 so mg = Fn? ?? except tension plays a role so how do i find Fn-Ft=mg?