[填空题]
A cyclist accelerates from rest at a rateu h sw) vg/ lti0vzr68*5hk)he of 1fvf;hrz: * ;yhtx9,0 py+pq g wt5jp5n 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.] $m/s$
Post time 2025-2-18 20:00:22
