[填空题]
A 70-cm-diameter wheel accelerates uniformly abo2,kx igjram5tlq z-4 :ut its center from 130 rpm to 284a-z5q i:mglt x,2jr ki,;9ieza ojklkf7edg r /.. z. ed 7.igl/e.kij, ;9akrzzfo. 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
