[填空题]
(a) A grinding wheel 0.35 m bew r21 q5/iv7mu q4mqin diametet:/*m( joepx 1.( afz6 cytitgr rotates at 2500 rpm. Calculate its angular velop ftg16/tmi*(aoct e.y( z: xjcity 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$