Question

If a racecar traveling at 6 m/s accelerates at 0.75 m/s over 30 seconds, what is itsfinal velocity?

Answer 1

We are given the initial velocity and the acceleration of a moving object and we are asked to determine its final velocity after 30 seconds. To do that we will use the following equation of movement:

`v_f=v_0+at`

Where "vf" is the final velocity, "v0" is the initial velocity, "a" is the acceleration and "t" is time. Replacing the given values:

`v_f=6(m)/(s)+0.75(m)/(s^2)*30s`

Solving the operations:

`\begin{gathered} v_f=6(m)/(s)+22.5(m)/(s) \\ v_f=28.5\text{ m/s} \end{gathered}`

Therefore, the final velocity is 28.5 meters per second.