Josh throws a ball straight up, from 3m above the ground, with a velocity of 14 m/s.

You didn't include a question. I could solve it if you had. 

I can make an attempt, though (I'll solve something but I'm not sure if that's what you're asking). I'll give an answer as if you asked how many seconds the ball traveled.

The ball moves at 14 meters per second. But if it only goes 3 meters, then to find the number of seconds traveled, you would need to set up a proportion.



We're finding X, which is the number of seconds it takes the ball to go 3 meters into the air. Isolate the variable X (I suggest doing this by cross multiplying) and you should get:


Alright, almost done! Now solve for x by dividing both sides by 14.

The number of seconds the ball travels for is 3/14 seconds, or roughly .21 seconds.