[填空题]
A 70-cm-diameter wheel accel accv 8( 7e4ktvvn8v)verates uniformly about its center from: cf9w- gsbu0xr1yz(-ok 5.c4nfiepp 130 rpm to 280 rpm in(1cu9kcxo z-rnbg5fiep pf:.s4-y 0w 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
