[填空题]
A 70-cm-diameter wheelt k.qcaz l; )f/nz92zz 6xzijq cv6;fsh91zn2b 2e ,7e2v y1wgwdcn-kg )lxp:accelerates uniformly about its center from 130 rpm to 280 rpm in 4.0 s de kc pwwgneb7l)y-g,221 :xv. 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
