The initial velocity is How do you solve the initial veloci

The initial velocity is :

How do you solve the initial velocity step by step? I thought that the Vo would be 0 because at time t=0 the ball wouldnt be moving...

Solution

Ball must have some initial speed to move in projectile motion

so that vi must not be zero

Ball will move in projectile motion

the time of flight

t=2visin/g

sin=1

t*g/2=vi

(-6)(-32)/2=vi

96ft/sec=vi