## Fundamentals of Physics Extended (10th Edition)

$789 km/s^2$
Centripedal acceleration is $a_{c} = \frac{v^2}{r}$ We found the velocity in part a as 125.6km/min and the radius is 20km. Therefore, the acceleration is $a_{c} = (125.6)^2/20 = 789 km/s^2$