[填空题]
A 70-cm-diameter wheel-bb; pp2vf3ltq (d jt0 accelerates uniformly about its center from 130 rpm to rf e,p1ipc2l)gg(b4efl b7z + 280 rpm in 4.0 cel) lg,b p r1epf2+i7fgb4z(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
