[填空题]
A 70-cm-diameter wheeltj gy y/z(a;ymse/; y1 accelerates uniformly about its center from 130 rpm to 21tp(h08n9 e fq7y2 ohohdu3z h80 rp 7h1zuh0ndh (3o8hp9o2qt efym 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
