[填空题]
A 70-cm-diameter wheel accelcwgpyt.ag89c009 r urerates uniformly about its center from 130 rvzj5ryo kj +q+(6vq bo2cf)8s pm to 28 6j2(y+foz)kq socv b8v+rj 5q0 rpm 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
