[填空题]
A tuning fork vibrates at a frequency of 264 Hz, and thfy4a8v von g94e tip of each bms0l17gz cc,w pv33eprong moves 1.3lszw b7c,0 cgm ev13p8 mm to either side of center. Calculate
(a) the maximum speed m/s
(b) the maximum acceleration of the tip of a prong. $m/s^2$