[填空题]
A 70-cm-diameter wheel accelerates uniformly about its cente9 k c.w*iomjl;,yvy cm 6sx08jr from 130 rpm to 2x l t cu,9r36r-qv:vofbc +q+n80 rpm in 4.0 s. Determ,q tr+n6f9 c3 q:-ocuxv l+bvrine (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
