[填空题]
A 70-cm-diameter wheekaabd gsf7+g 5w8dh 6;l accelerates uniformly about its center from 13fo2x:l m* q d;b*l m( jjt/tj-gc8fn3b0 rpm to 280 rpmo-* d jcml/:lqj2tx8g*bb jn3;mt(f f in 4.0 s. Determine (a) its angular acceleration,$\approx$ $rad/s^2$(Round to one decimal places) (b) the radial and tangential components of the linear acceleration of a point on the edge of the wheel 2.0 s after it has started accelerating. $a_R$ $m/s^2$ $a_{tan}$ $m/s^2$
Post time 2025-2-18 20:00:22
