[填空题]
A 70-cm-diameter wheel accelerates uniformly about its c6ehegw s 7 z/wz 6:r2vvy:d6zjenter from 130 rpm t(7ctattuko l0 5ld27ao 280 rpm in lt a( ld77ctao0u25 kt4.0 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
