Disney's Rockin' Roller Coaster is catapulted from 0 to 60 mi/h in 2.8 s. What is its acceleration? 

---

	a = 9.6 m/s2
	a = 6.3 m/s2
	a =5.2 m/s2
	a = 3.2 m/s2

(c) 2000, Doug Davis; all rights reserved