[填空题]
(a) A grinding wheel 0.35 m in diameter rotates at 2500 rpmigsu 7;5aa+ymz d/-ig. Calculate its a2i 0rjddwo 5usrq ,xk0tv- .2xngulid k. rtovx2rq-,5xd0uw2j 0sar velocity 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$