如图所示,在匀速转动的洗衣机圆桶内壁上有一衣物一起随桶转动且

如图所示,在匀速转动的洗衣机圆桶内壁上有一衣物一起随桶转动且与桶壁保持相对静止,衣物所受重力的平衡力是(    

  A.向心力                                B.静摩擦力          

C.桶壁的弹力                         D.滑动摩擦力

 

 

 

 


答案

B

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