线速度的大小：v= △S △t = 10m 1s =10m/s周期：T= 2πR v = 2π×2 10 = 2π 5 s角速度：ω= 2π T = 2π 2 5 π =5rad/s故本题答案为：10m/s，5rad/s， 2π 5 s．
