Answer:
3 meters per minute
Step-by-step explanation:
[tex]s \xrightarrow{\textsf{differentiate}} v \xrightarrow{\textsf{differentiate}} a[/tex]
[tex]s \xleftarrow{\textsf{integrate}} v \xleftarrow{\textsf{integrate}} a[/tex]
Velocity is the rate of change of displacement, therefore to find the equation for velocity, differentiate the given equation for displacement:
[tex]s(t)=3t+13[/tex]
[tex]\implies v(t)=\dfrac{ds}{dt}=3[/tex]
Therefore, the velocity is constant at 3 meters per minute (so there is no need to calculate average velocity over an interval).
