To calculate the net force (\(F_{net}\)) acting on box 1, we can use the formula provided:
\[ F_{net} = F_{applied} - F_{friction} \]
However, we need to have values for \(F_{applied}\) and \(F_{friction}\) in order to solve for \(F_{net}\). Since those values have not been provided in your question, I can't specifically calculate \(F_{net}\).
If you can provide the values for \(F_{applied}\) and \(F_{friction}\), I would be happy to help you solve for \(F_{net}\) in box 1.