Dropped objects and other motions relative to the noninertial earth
Dropped objects and other motions relative to the noninertial earth
复制标题
掉落的物体和相对于非惯性地球的其他运动
DOI：
10.1119/1.19385
复制
发表时间：
2000
影响因子：
0.9
通讯作者：
H. Soodak
中科院分区：
文献类型：
--
作者：
M. Tiersten;H. Soodak
由于地球的自转及其在太阳、月球和其他外部吸引子的重力场中的轨道自由落体加速度，地球是一个非惯性参考系。讨论了相对于地球运动的三个特别有趣的方面：（a）太阳和月亮以及其他外部引力吸引子的影响； (b) 中纬度地区的傅科摆； (c) 掉落物体的路径偏离铅垂线这一古老而令人惊讶的问题。对二十世纪有关地球运动的物理学文献的选择性回顾表明，错误和遗漏比比皆是。还提出了第四个例子，即粒子在无摩擦水平面上自由运动的有趣教科书问题，作为许多文献中粗心的错误处理的简单说明。
Earth is a noninertial frame of reference due to its spin and its orbital free-fall acceleration in the gravity fields of the sun, moon, and other external attractors. Three particularly interesting aspects of motion relative to the earth are discussed: (a) the effect of the sun and the moon and other external gravitational attractors; (b) the Foucault pendulum at middle latitudes; (c) the venerable and surprising problem of the deviation of the path of a dropped object away from the plumb line. A selective review of the twentieth century physics literature on motion relative to the earth demonstrates that errors and omissions abound. A fourth example is also presented, the interesting textbook problem of the free motion of a particle on a frictionless horizontal plane, as a simple illustration of carelessly incorrect treatment in much of the literature.