[填空题]
A cyclist accelerates from reso;v u*/o7cz .mk(+c xly0cbysa6 mgg9t ac37.ny du :d5 4-1ai+ mkd qenlvzwt6pt a rate of 1 m/$s^2$ How fast will a point on the rim of the tire at the top be moving after 3.0 s? [Hint: At any moment, the lowest point on the tire is in contact with the ground and is at rest — see Fig. 8–51.] $m/s$