## Essential University Physics: Volume 1 (3rd Edition)

125 m/$s^{2}$
We use the equation for average acceleration to obtain: a̅= $\frac{\Delta v}{\Delta t}$ = $\frac{(450-0) km/s}{1 hr}$ = $\frac{450000 m/s}{3600s}$ = 125 m/$s^{2}$