And when the slope of skate board face does not at the same time on the inflatable slide  direction of gravitational force component size, it will show the difference in the test. The acceleration of gravity force component, the greater the decline, the greater the speed rapid, the faster it will work. Along a straight inflatable slide  down, slide in the acceleration keeps the same, the speed increase much more steadily. Along the cyclonic slide down, beginning a skateboard slope is very big, make children falling in a very short period of time the slip velocity is very large. However, in the second half of the decline stage, slope gradually become smaller, the speed increase much slower, but at the moment of falling speed has become much bigger and faster.