A track runner participates in the long jump. They leave the take off board at an angle of 39 degrees w/ a resultant velocity of 13 m/s.
a.) What is the horizontal velocity before the track runner lands?
b.) What is the runner's vertical velocity after .60 seconds?
c.) How far did the runner jump?

I know I've already asked a similar question like this but it was really hard for me to follow the explanation. Can someone please show me how to work it, preferably using the numbers given? Thanks!!!

Question

A track runner participates in the long jump. They leave the take off board at an angle of 39 degrees w/ a resultant velocity of 13 m/s. 
a.) What is the horizontal velocity before the track runner lands?
b.) What is the runner's vertical velocity after .60 seconds?
c.) How far did the runner jump?

I know I've already asked a similar question like this but it was really hard for me to follow the explanation. Can someone please show me how to work it, preferably using the numbers given? Thanks!!!