The figure below shows an electrically conductive bar of square cross-section resting on a plane surface. The bar of mass of 1 kg has a depth of 0.5 m along the y direction. The coefficient of friction between the bar and the surface is 0.1. Assume the acceleration due to gravity to be 10 m/s\(^2\). The system faces a uniform flux density \( B = -1 \hat{z} \, \text{T} \). At time \( t = 0 \), a current of 10 A is switched onto the bar and is maintained. When the bar has moved by 1 m, its speed in metre per second is \(\underline{\hspace{2cm}}\) (rounded off to one decimal place).
