Posted by mohlomphegi on Friday, August 30, 2013 at 3:53am.
a soccer ball is kicked 25 meter,It's maximum hight is 6 meter,Wha is its initial velocity and the time of flight

physical science  Steve, Friday, August 30, 2013 at 5:07am
since the range and max height are
r = v^2 sin2θ/g = 25
h = v^2 sin^2θ/2g = 6
tanθ = 24/25
so you can find the initial v.
And of course, the height y is
y = vt  g/2 t^2
set y=0 to find the flight time t. 
physical science  JOhhny Depp, Monday, September 19, 2016 at 9:56am
14.97 m/s at 47 deg