一质量m=19kg的物体在斜向上的力F的拉动下,在水平地面上向右做匀速直线运动.已知力F=50N,与水平方向夹角O=37度(sin37°=0 cos37°=0.8 ,g取10m/S).1求物体对地面的压力大小 2求物体与地面间动摩
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![一质量m=19kg的物体在斜向上的力F的拉动下,在水平地面上向右做匀速直线运动.已知力F=50N,与水平方向夹角O=37度(sin37°=0 cos37°=0.8 ,g取10m/S).1求物体对地面的压力大小 2求物体与地面间动摩](/uploads/image/z/7837920-0-0.jpg?t=%E4%B8%80%E8%B4%A8%E9%87%8Fm%3D19kg%E7%9A%84%E7%89%A9%E4%BD%93%E5%9C%A8%E6%96%9C%E5%90%91%E4%B8%8A%E7%9A%84%E5%8A%9BF%E7%9A%84%E6%8B%89%E5%8A%A8%E4%B8%8B%2C%E5%9C%A8%E6%B0%B4%E5%B9%B3%E5%9C%B0%E9%9D%A2%E4%B8%8A%E5%90%91%E5%8F%B3%E5%81%9A%E5%8C%80%E9%80%9F%E7%9B%B4%E7%BA%BF%E8%BF%90%E5%8A%A8.%E5%B7%B2%E7%9F%A5%E5%8A%9BF%3D50N%2C%E4%B8%8E%E6%B0%B4%E5%B9%B3%E6%96%B9%E5%90%91%E5%A4%B9%E8%A7%92O%3D37%E5%BA%A6%EF%BC%88sin37%C2%B0%EF%BC%9D0+cos37%C2%B0%3D0.8+%2Cg%E5%8F%9610m%2FS%EF%BC%89.1%E6%B1%82%E7%89%A9%E4%BD%93%E5%AF%B9%E5%9C%B0%E9%9D%A2%E7%9A%84%E5%8E%8B%E5%8A%9B%E5%A4%A7%E5%B0%8F+2%E6%B1%82%E7%89%A9%E4%BD%93%E4%B8%8E%E5%9C%B0%E9%9D%A2%E9%97%B4%E5%8A%A8%E6%91%A9)
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