[填空题]
A 70-cm-diameter whee4a e9v* qzg+wsl accelerates uniformly about its center from 130 rpm to 2r3 ddm8m,zh+h 7;fegs2 r p; :(qbk3cjmukph180 rpm in 4.0 s.:uzc3 k12gmrkqe hj;( 8hddm p3ph ,m sfb+7r; 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
