2006-09-24 12:53:39 · 2 answers · asked by kelly k 1 in Science & Mathematics ➔ Physics
Zero. Anything moving at a constant speed has zero acceleration.
However, while the tire, as a whole, is moving at a constant speed and not accelerating. There is a circular acceleration existant on any point away from the center of the tire, because it is constantly changing direction as it spins. That acceleration depends on where on the tire the point resides.
2006-09-24 13:01:09 · answer #1 · answered by nondescript 7 · 0⤊ 0⤋
Angular acceleration? (probably). Like being on a kids playgrround toy - the spinning wheel-thing. Damn - so long ago, I can't even remember what its called. Anyway, hop on that thing, and have someone spin it (even at a constant speed), and the spinning causes your body to want to fly off of it.
So, to figure out the problem, figure out how FAST the tire is spinning due to the movement relative to the pavement (at 25 m/sec). That will lead to the angular acceleration of the spinning tire.
2006-09-24 20:24:05 · answer #2 · answered by 2Horses 2 · 0⤊ 0⤋