Please help me fill out the velocity uncertainty and velocity ^2 portion of the table. Thank you!

Font agraph Styles Ed Without mass Distance (m) Velocity (m/s) Velocity uncertainty Velocity (m^2/5^2) (m/s) 1.6 0.516 1.4 0.517 1.2 0.516 1.0 0.515 0.8 0.516 Mean=0.516 Std. dev. 5.650*10^-4 With added mass (20g) Distance Velocity Velocity uncertainty Velocity (m^2/s^2) (m/s) 1.6 0.516 1.4 0.474 1.2 0.423 1.0 0.367 0.8 0.2850 Mean=0.413