Answer:
Total displacement will be 1120 meters.
Explanation:
To calculate displacement from the velocity, need to take integral of velocity for a one time period.
[tex]x=\int\limits^7_{-1} {t^3-15*t^2} \, dt\\x=\int\limits^7_{-1} {t^3} \, dt-\int\limits^7_{-1} {15*t^2} \, dt\\x=600-1720\\x=-1120[/tex]
The total displacement is 1120 meter in negative way.
