kids have fun going down the slides.
the slides are good for playgrounds because kids like going down slides and sliding down. kids enjoy being on a slide.
laws of motion
Several forces have an effect on the efficiency of a slide, with the most obvious being the force of gravity. Gravity is a constant force that exerts itself on anything that has mass. However, gravity is not the only force that determines the speed or acceleration of an object, or person, traveling down a slide.
The Physics of Playground Slides and Swings