[填空题]
A 70-cm-diameter wheel acceler8qvler.h :r63*kls l pme+6iz ates uniformly about it4hwtg: 2 ikx. y.b (d.mdp6ufjw,rr:vs center from 130 rpm to 280 rpm in(rjw 6iuhbwv2. .kt.xpmf:4 ,y:g dr d 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
