
Use Algebra to solve
Use Algebra to solve $\displaystyle v_2$ = $\displaystyle v_1$ + $\displaystyle at$ for $\displaystyle v_1$ if $\displaystyle v_2$ = 245m/s, a= 19m/s squared, and t = 22s
I just want to be put on the right track... now I seen many examples for this online. I just am primiarily confused because of the units of time and speed.

Re: Use Algebra to solve
In solving for $\displaystyle v_1$, you can ignore the units. Units are useful to check that expressions that you are evaluating make physical sense, but they don't contribute to the numerical answer.
Start by subtracting $\displaystyle at$ from both sides of the equation.

Re: Use Algebra to solve
Thank you very much. I figured it out and it was right, I made it harder than it should of been.