M5e3isheKweCiC M5e3isheKweCiC 03-02-2017 Chemistry contestada ill upvote please help A roller coaster starts down a hill at 10 m/s. Three seconds later, its speed is 32 m/s. What is the roller coaster’s acceleration? Question 1 options: -7.3 m/s -7.3 m/s2 7.3 m/s 2 7.3 m/s