[填空题]
A 70-cm-diameter wheel accelerates uniformly about its center from 1(j n,y fff4/*tg+eqfz zv d)5b30 rpm to 2 (x5r/ 01gwwbzy yoic+8o ywx 0+icyw/1br5zg (0 rpm in 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
