[填空题]
A 70-cm-diameter wheel au4c5s g76qzzy.+rm6i6ydl 2sst 2khn f*z,u:4a ma7ja ctfcptmg;.g.w4zj fv +x( 6mccelerates uniformly about its center from 130 rpm to 280 rpm in 4.0 v67+za4cf ttzmx,m .gc j fwg.a4(m*:paj uf;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
