[填空题]
A 70-cm-diameter wheel accelerates uniq5 /hbqopi ud)dtk50kvm*uq:t92zt+formly about its center from 130 rpm to tgzwx wz l*+x-mc;6d; 0b9 tuj280 rpm in 4.0 s. z g-*jw ubt;+x90lxd w c;m6tzDetermine (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
