[填空题]
A 70-cm-diameter wheel accelerates uniformly about its center from 130 o;g -wot1 y c:otq,(q1*ppvxjj0 ,hd lrpm to6 pyep u q,5n61zxf8t-qn.tyz 280 rpm in 4.0 s 5-,8qt6zxny6tuype. 1 qpzfn . 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
