[填空题]
(a) A grinding wheel 0.35 m in diamete + kc7c*g3gdv/se ijp/r rotates at tb5 rs ,h)sxq +cwwi2d2 o/pfs-uee5-*m3fse2500 rpm. Calculate its angular 25f b-c pd/5+ir*s2ew3 e oq-)mws,heusftx svelocity in $rad/s$ $\omega$ = $rad/sec$ (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$