物理曲线运动习题质量为2kg的质点在x-y平面上做曲线运动,在x方向的速度图像和在y方向的位移图像如图所示,质点的初速度是多少?2s末质点速度大小是多少?质点所受的合外力是多少?质点初速
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![物理曲线运动习题质量为2kg的质点在x-y平面上做曲线运动,在x方向的速度图像和在y方向的位移图像如图所示,质点的初速度是多少?2s末质点速度大小是多少?质点所受的合外力是多少?质点初速](/uploads/image/z/6626609-17-9.jpg?t=%E7%89%A9%E7%90%86%E6%9B%B2%E7%BA%BF%E8%BF%90%E5%8A%A8%E4%B9%A0%E9%A2%98%E8%B4%A8%E9%87%8F%E4%B8%BA2kg%E7%9A%84%E8%B4%A8%E7%82%B9%E5%9C%A8x-y%E5%B9%B3%E9%9D%A2%E4%B8%8A%E5%81%9A%E6%9B%B2%E7%BA%BF%E8%BF%90%E5%8A%A8%2C%E5%9C%A8x%E6%96%B9%E5%90%91%E7%9A%84%E9%80%9F%E5%BA%A6%E5%9B%BE%E5%83%8F%E5%92%8C%E5%9C%A8y%E6%96%B9%E5%90%91%E7%9A%84%E4%BD%8D%E7%A7%BB%E5%9B%BE%E5%83%8F%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E8%B4%A8%E7%82%B9%E7%9A%84%E5%88%9D%E9%80%9F%E5%BA%A6%E6%98%AF%E5%A4%9A%E5%B0%91%3F2s%E6%9C%AB%E8%B4%A8%E7%82%B9%E9%80%9F%E5%BA%A6%E5%A4%A7%E5%B0%8F%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E8%B4%A8%E7%82%B9%E6%89%80%E5%8F%97%E7%9A%84%E5%90%88%E5%A4%96%E5%8A%9B%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E8%B4%A8%E7%82%B9%E5%88%9D%E9%80%9F)
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