[填空题]
A 70-cm-diameter whe :p8k+ydh:n*2uc5- zi o kfrc8p3o2g2 vzoenael acc8cp4r7sxf3 ar2yfkr9w / k.kx*z:pu pelerates uniformly about its center from 130 rpm to 280 rpm in 4.0 s. Determiney7x 2rz/3.pspxw9k8r f* uck: 4rfpak (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
