At $t=0,$StarA is at the position $($:$0,7\mathrm{.}5{10}^{10},0$:$)m.$ At $t=8\mathrm{.}0{10}^{7}s,$ Star $A$ is at the position $($:$8\mathrm{.}632{10}^{11},-4\mathrm{.}039{10}^{10},0$:$)m.$ What is the magnitude of the average velocity of Star $A$ in $\frac{m}{s}?$

Use VPython for your calculation. Be sure to define variables for the initial and final positions of Star A and the time interval, and calculate the average velocity in terms of these variables. Then, calculate its magnitude. Do not use a hand$-$held calculator. You can write your calculation in the VPython Trinket below, but your code will not be saved. Or you can use Web VPython $G$ and save your program.