[填空题]
(a) A grinding wheelg5xlmzh8pi*1sop9+ n 0.35 m in diameter rotates at 2500 rpm. Calculat bd.g;m g s8fzefx*(2surum.) e its angular velocity zeg.(dr sfm);2 x *umbs8gf.uin $rad/s$ $\omega$ = $rad/sec$ (b) What are the linear speed and acceleration of a point on the edge of the grinding wheel? v = $m/s$ $a_R$ = $ m/s^2$