I programmed some bouncing balls in my math course! Some sad stuff too though

We're going to add some gravity to it as well later on.

It's a fun little exercise but my group is really struggling. They think these later labs are getting too difficult while I think they're easy, so my two other lab members are rightly getting disappointed with this course and I can't help but feel a bit like the bad guy here. I spent 4 hours trying to get them on track today, 2 of those hours I prompted them to write some code by giving hints but to no or little avail... It was meant to be a helpful and kind gesture but it had the effect of taunting. 😐

They're good champs though, they're fighting on but I really want to motivate them. Any tips?