1. The problem statement, all variables and given/known data Taking the intial velocity to be 10.0 m/s, g to be 9.8m/s2 and ignoring effects of air calculate: -the total time of flight of the ball -the maximum height it reaches variables: u=10 a=9.8 2. Relevant equations v=u+at x=vt-1/2at 3. The attempt at a solution I've recently switched to Physics at school and I'm unsure about this question. Why isn't the intial velocity zero if it is being thrown up?