Assume you are moving 10 meters in 10 seconds northward. What is the acceleration?.
Using this equation: $a = (v_f - v_o)/\Delta(t)$ and filling it in with this data: $v_f=1$ which comes from $10$ $m/10s=1m/s$, $v_o=0$ because we are starting at a speed of $0$ and $t=10$ because that's how long it tooks. We find out that $a = (1-0)/(10)$ which equals $.1$ $m/s$ $N$.
But when you use a different equation: $a=2d/t^2$ and filling in $d$ with $10m$, and $t$ with $10s$ you get $a=20/100^2$ which is $.2m/s/s$) Why is this?