Calculator 15 pts 5 1 Details Question 10 A cannon ball is launched into the air with an upward velocity of 78 feet per second, from a 6-foot tall cannon. The height h of the cannon ball after t seconds can be found using the equation h =- 16t2 + 78t + 6. Approximately how long later will the cannon be at 49 feet high? Round answers to the nearest tenth if necessary. seconds How long later will it hit the ground? seconds In the help video below a TI calculator is used, however you may use another graphing technology such as desmos.com. Calculator Next Page