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【单选题】
物体以匀角加速度做变速圆周运动,那么下列有三种表述:(1)加速度的大小为定值;(2)法向加速度的大小为定值;(3)切向加速度的大小为定值,那么对于这三种表述的分析正确的是()
A.
1和3表述正确
B.
无正确的表述
C.
只有3表述正确
D.
只有2表述正确
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