If the balls time of flight is 10 seconds, what is the veetical component of its initial velocity

All right. Let's get a list of kinematic equations going on here.




What do we know?
a=gravity -9.8 m/s^2
vi=?
vf=?
x=0, since it's going up and then back down to where it started originally
t=10 s

Now, the most reasonable equation to go with would be the last one, .

Let's plug some things in.




Initial velocity equals 49 m/s upwards.

Iwas going to ask that quesytion  sorry dude i dont  know : (    : /