1. When someone gets shot out of a human cannon with an initial velocity of 15 m/s and they have a mass of 60 kg. Final velocity is 0. Maximum constant force is 3000 N. This is free fall so acceleration is 10 m/s^2. There is no friction. So when you look at my attempt in solution I got the same answer as I did when I did this equation with friction because I did the same steps. So what is different about friction? How can I fix it? 2. Relevant equations Δ/A=T D=(Vi*T)=.5 (at^2) 3. The attempt at a solution Well I did 15/10=1.5 (15*1.5)+.5(10*1.5^2)= 22.5 +11.25=33.75.