Calculator Question 10 15 pts 5 1 0 Details 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 O Type here to search O
没有找到相关结果