[填空题]
A 70-cm-diameter wheel acceler6o;9ki8n3t zx+s.th djtv de7a+.emo844 cvr5u/rs(ml 7z; gfdgjap q tes uniformly about its center from 130 rpm to 280 rpm in 4.0 svgd/ a.+g;r m4l48ucq 5zrmp7s(fj oe . 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
