At a festival, stunt devils are launched in large catapults

Last updated: 7/20/2022

At a festival, stunt devils are launched in large catapults and air cannons. On one launch, the height of the stunt devil in feet above the ground after t seconds is modeled by y = -16t² + 60t +8. How long does it take the stunt devil to hit the ground? 10.2 sec 15 sec 3.8 sec 16 sec