Question

A truck covers 40.0 m in 8.55 s while smoothly slowing down to final speed 1.40 m/s. (a) Find the truck's original speed
How do I get the acceleration also?

Answer 1

would the original speed be 3.28 m/s?

Answer 2

If it is how would i find it and get the acceleration

Answer 3

Use the equations of motion.
\[v=u+at\] and \[s=ut+\frac{ 1 }{ 2 }at ^{2}\]

Answer 4

Find u in the first equation and substitute it in the second one to get acceleration