# Chapter 2 - Exercises and Problems: 22

125 m/$s^{2}$

#### Work Step by Step

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/$s^{2}$

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