Code "upward"

            
                
            let x=0;
            let y=500;
            let radius = 80;
            let speed = 10;

            function setup(){
            const canvas = createCanvas(500, 500);
            canvas.parent("sketch");
                
                
            y = height;
            x = width / 2;
            strokeWeight(0.8);
            fill("hsl(39, 100%, 50%)");
                
            }

            function draw() {
            background("hsl(195, 53%, 79%)");
            circle(x, y, radius);
            speed *= 1.0;
            y -= speed;
            if (y < -radius) {
            y= height; 
            speed = 1.5;
            }
            }