What two forces cause the arc-shape of projectile motion?

Gravity + velocity causes a projectile to arc. For example, when you shoot a basket ball you make it go forward but gravity pulls it dow so you have to shoot high to make it fall in the hoop.

Forces along the horizontal

force that caused initial velocity in x-dir

force that caused final velocity in x-dir

forces along the vertical

force that caused initial velocity in y-dir

force that caused final velocity in y-dir

force of gravity