Question

I need help with understanding an equation
vf^2=vi^2+2ad
vf=10
a=3
d=6
what is vi=?

Answer 1

i got 8 by doing 100=vi^2+2(3)(6) but my teacher asks for an equation how would i write it?

Answer 2

\[v _{i }^{2}=v _{f}^{2}-2ad\]

That's the equation. \[v _{i}\] is the initial velocity

Answer 3

Your answer is correct. I'm not sure what concerns you.

Answer 4

thanks for helping me :)