posted by Anonymous .
if a soccer player kicks a ball at an angle of 36 degrees and it lands 31.4 meters away. what is the initial velocity of the ball
hf=hi+vivertical*timeinair- 9.8 time^2
so what is time in air.
timeinair= 31.4/Vhorizontal= 31.4/Vcos36
V= 9.8/sin36 * 31.4/Vcos36
V= sqrt (9.8*31.4/sin36cos36)