[填空题]
A 70-cm-diameter wheel accelermzw96fbcc(lpnhk3d/q; 1 v7 *dq f :trates uniformly about itupmchj20tz -4g/1 l yu ov)lc*ji8z/vs center from 130 rpm to 280 rpm in cmzgphz0/8c /*vj1-v lyjo) uit4lu2 4.0 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
