A traveller walks \(30 \mathrm{~m}\) along a train platform, dragging their suitcase behind them using a strap attached to the top. The traveller's hand is \(0.25 \mathrm{~m}\) above the top of the suitcase, and the \(0.80-\mathrm{m}\) long strap maintains a tension of \(120 \mathrm{~N}\) as the suitcase is dragged. How much work does the strap do on the suitcase?