2007-10-25 14:49:11 · 5 answers · asked by Lisa L 1 in Science & Mathematics ➔ Physics
when braking the car to stop, when sanding wood smooth, when cutting >anything<
2007-10-25 14:54:08 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Traction is normally derived from friction so walking, running, driving and so forth. Baseball would be a different sport. The base runners would have to do something else, bats would slide off the ball, a slide at home would go on indefinitely. The pitcher could only throw straight if s/he could hold the ball at all. Without friction there would be no English on a cue ball. And the balls would never slow down. Wow, this is endless.
Honestly, friction is a "force" we have lived with since before we started walking upright. If we lost all gravity on Earth it might change our lives more than losing all friction but in my estimation either would spell the end of the human race and any other life forms you would care to mention.
It is an interesting question though.
2007-10-25 22:03:02 · answer #2 · answered by gimpalomg 7 · 1⤊ 0⤋
One would be ice because the friction would allow you to walk on it.
2007-10-25 21:52:53 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Bringing a car to a stop.
Not slipping when you walk on the sidewalk.
Belt driven saws.
2007-10-25 21:55:18 · answer #4 · answered by eric l 6 · 0⤊ 0⤋
1. Car brakes
2. lap dance
3. Mechanical Digestion.
2007-10-25 21:54:20 · answer #5 · answered by st 3 · 1⤊ 0⤋