[填空题]
A 70-cm-diameter wheel accelerates uniformly abouth u2-0 w)mxuhh its center from 130 rpm to j5 g uxv0):owr p:i f dkjr)lj8b:ub1:280 rpm in 4.k uw:b: rj) j :8l:dio5rxvjpbfu0g)10 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
