decreases friction between the tires of a car and the road ?
increases friction between the tires of a car and the road ?
decreases the gravitational force on a car ?
increases the normal force of a car on the road?
2007-03-23 10:27:57 · 6 answers · asked by couturevogue 3 in Science & Mathematics ➔ Physics
B. increase friction...
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2007-03-23 10:31:40 · answer #1 · answered by tlbs101 7 · 0⤊ 0⤋
Increases friction between the tires of a car and the road. Think about it...when the road is icy, it's slippery and there is no friction between and the tire since it just glides on the icy surface, but sand has a rough consistency which takes more force for tires to move on it, and more force means more friction.
2007-03-23 10:35:12 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Sand is often placed on an icy road because the sand decreases the coefficient of friction between the tires of a car and the road.
2007-03-23 10:45:39 · answer #3 · answered by musiclover724 3 · 0⤊ 1⤋
Increases friction.
2007-03-23 10:31:56 · answer #4 · answered by Clown Knows 7 · 0⤊ 0⤋
The first answer. The sand acts as a gritty device to prevent the tires from being more slippery on the icy surface. You know when rubber gets wet or extremely hot, it will get slippery. Add the wet tires plus ice, and that equals a horrible accident that can happen. Put sand in the equation and it prevents slipping.i guess you can say it acts as a barrier.
2007-03-23 10:34:19 · answer #5 · answered by tropikanagirl 3 · 0⤊ 0⤋
increases friction between tires and road.
2007-03-23 10:31:35 · answer #6 · answered by Matthew P 4 · 1⤊ 0⤋