Original Lesson retrieved from www.teachengineer.org Adapted by Dr. Jennifer L. Bell, LaGrange High School, LaGrange, Georgia (© 2010) • • • • • 2 sheets of paper 2 drinking straws 2 pairs of scissors Stopwatch A tape dispenser (You will need to share with another group if your group does not have one.) **To convert inches to feet with decimals, divide the number of inches by 12. Round to the nearest hundredth. Buddy A Height Initial Maximum (vertex) (launching height) 8 ft. Time (to the nearest tenth of a second) 0 sec. Buddy B Height (launching height) 8 ft. Time (to the nearest tenth of a second) 0 sec. time based on 32 ft/s2 gravity initial velocity initial height -16(_______)2 + vo (_______) + (_______) = 8 vertex’s time launching height -16(_______)2 + vo (_______) + (_______) = 8 h(x) = -16t2 + (_______) t + (_______) initial velocity launching height h(x) = -16t2 + 13.5t + 5.25 b b 4ac x 2a v 2 v v v maximum height (vertex) equal time ground level equal time 9 Height (in feet) 8 7 6 5 4 3 2 1 0 0.5 1 1.5 Time (in seconds) 2