One coulomb of point charge moving with a uniform velocity 10 $\hat{x}$ m/s enters the region x ≥ 0 having a magnetic flux density $\overrightarrow{B}=\left(10y\hat{x}+10x\hat{y}+10\hat{z}\right)T$. The magnitude of force on the charge at x = 0+ is ______ N. ( $\widehat{\mathrm{ y}}$ and $\hat{z}$are unit vectors along x-axis, y-axis, and z-axis, respectively.)