Read exercise number 4 and try to find your own solution. Then check with this animation if your answers are correct (this simulation should have 0.01s of maximum error, I hope!) then have fun trying to change the initial values. You can choose velocities between 0.1 and 20.0 m/s and angles between 1 and 89 degrees.
(as you can see the boy in this animation is shorter than one meter haha. My fault, I can't draw so I took the picture from the internet)