[填空题]
A 70-cm-diameter wheel accelerates uniformly about its centx7pl 6t8r:hvv f u*(,og5cxwp er from 130 rpmu-:e 95- xj)0qzgnkoy v6ugsm to 280 rpm in 4.0 s. Dg j0 )o59e-qy:s6vxunkzmug- etermine (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
