I have the following problem...
A person throws a ball upward into the air with an initial velocity of 15.0m/s. Calculate: how high it goes, how long is in the air before it comes back to his hand, the velocity of the ball when it returns to the thrower's hand, and the time when the ball passes a point 8.0m above the person's hand.
With so little given [only the initial velocity is given, and I know that gravity plays a part, but I am still stumped], I'm not sure how to proceed with this. Help is appreciated.