[填空题]
A 70-cm-diameter wheel accelerz aoow6w ,v )lk:k0o we+eay94ates uniformly about its center from 13xf8g 0 2lq.yoq0 rpm to 280 rpm in 4.0 s. 2 q.yfo0qgx8l 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
