高一物理(帮我看看这两道题有什么不同)1.一个物体在F1=10N,F2=15N、F3=20N三个共点力作用下保持静止,现在撤销F1后,则该物体所受合力大小是 A.0N B.10N C.25N D.35N 2.物体在力F1、F2、F3的
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![高一物理(帮我看看这两道题有什么不同)1.一个物体在F1=10N,F2=15N、F3=20N三个共点力作用下保持静止,现在撤销F1后,则该物体所受合力大小是 A.0N B.10N C.25N D.35N 2.物体在力F1、F2、F3的](/uploads/image/z/8332287-15-7.jpg?t=%E9%AB%98%E4%B8%80%E7%89%A9%E7%90%86%EF%BC%88%E5%B8%AE%E6%88%91%E7%9C%8B%E7%9C%8B%E8%BF%99%E4%B8%A4%E9%81%93%E9%A2%98%E6%9C%89%E4%BB%80%E4%B9%88%E4%B8%8D%E5%90%8C%EF%BC%891.%E4%B8%80%E4%B8%AA%E7%89%A9%E4%BD%93%E5%9C%A8F1%3D10N%2CF2%3D15N%E3%80%81F3%3D20N%E4%B8%89%E4%B8%AA%E5%85%B1%E7%82%B9%E5%8A%9B%E4%BD%9C%E7%94%A8%E4%B8%8B%E4%BF%9D%E6%8C%81%E9%9D%99%E6%AD%A2%2C%E7%8E%B0%E5%9C%A8%E6%92%A4%E9%94%80F1%E5%90%8E%2C%E5%88%99%E8%AF%A5%E7%89%A9%E4%BD%93%E6%89%80%E5%8F%97%E5%90%88%E5%8A%9B%E5%A4%A7%E5%B0%8F%E6%98%AF++++++A.0N+++B.10N+++C.25N+++D.35N+2.%E7%89%A9%E4%BD%93%E5%9C%A8%E5%8A%9BF1%E3%80%81F2%E3%80%81F3%E7%9A%84)
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