Gravity with forces

Im trying to make a 2d rocket league, and forces arent working with physics (to add a side view boosting mechanism) so i want to use forces, but i cant find how to implement gravity so that i can actually make it work. (for the ball i will use bounce extension)

Watch the gdevelop physics tutorial both intermediate and In-depth

i got it to work, without using physics2.0 i just used forces.

I recommend you use the physics engine but it requires some bit of extra work but It is all worth it