救题如救火(物理的)1.小A长方体放在大B长方体上,用5N的水平向右的力拉长方体B,长方体B仍静止不动,则( )A.A,B两物体均受5N的静摩擦作用B.A物体受静2.5N的摩擦力作用C.B物体上下两面均受2.5N的静
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![救题如救火(物理的)1.小A长方体放在大B长方体上,用5N的水平向右的力拉长方体B,长方体B仍静止不动,则( )A.A,B两物体均受5N的静摩擦作用B.A物体受静2.5N的摩擦力作用C.B物体上下两面均受2.5N的静](/uploads/image/z/11297929-49-9.jpg?t=%E6%95%91%E9%A2%98%E5%A6%82%E6%95%91%E7%81%AB%28%E7%89%A9%E7%90%86%E7%9A%84%291.%E5%B0%8FA%E9%95%BF%E6%96%B9%E4%BD%93%E6%94%BE%E5%9C%A8%E5%A4%A7B%E9%95%BF%E6%96%B9%E4%BD%93%E4%B8%8A%2C%E7%94%A85N%E7%9A%84%E6%B0%B4%E5%B9%B3%E5%90%91%E5%8F%B3%E7%9A%84%E5%8A%9B%E6%8B%89%E9%95%BF%E6%96%B9%E4%BD%93B%2C%E9%95%BF%E6%96%B9%E4%BD%93B%E4%BB%8D%E9%9D%99%E6%AD%A2%E4%B8%8D%E5%8A%A8%2C%E5%88%99%28+%29A.A%2CB%E4%B8%A4%E7%89%A9%E4%BD%93%E5%9D%87%E5%8F%975N%E7%9A%84%E9%9D%99%E6%91%A9%E6%93%A6%E4%BD%9C%E7%94%A8B.A%E7%89%A9%E4%BD%93%E5%8F%97%E9%9D%992.5N%E7%9A%84%E6%91%A9%E6%93%A6%E5%8A%9B%E4%BD%9C%E7%94%A8C.B%E7%89%A9%E4%BD%93%E4%B8%8A%E4%B8%8B%E4%B8%A4%E9%9D%A2%E5%9D%87%E5%8F%972.5N%E7%9A%84%E9%9D%99)
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