你会如何使用Iphone称重？ [英] How would you weigh something using an Iphone?

问题描述

如果你知道手机的重量，你会如何使用手机对任何物体进行加权？

Provided you know the weight of the phone, how would you weight any object using the phone?

编辑：好的，如果你的设备可以让你怎么办？比较权重？

Ok what if you had a device that would let you compare the weights?

推荐答案

将两个物体在无质量标尺上以一定距离分开放置在外太空中。通过相互引力，它们将吸引到共同的重心。使用iPhone相机记录标尺上的起点和会合点。从c.g.点和起点计算相对质量。如果你也可以使用iPhone的时钟代替相机来实现这一点。

Place both objects motionless in outer space a known distance apart over a massless ruler. By mutual gravitational attraction, they will attract to the common center of gravity. Use the iPhone camera to record the starting point and meeting point over the ruler. From the c.g. point and the starting points calculate the relative masses. Bonus if you can also do this using the iPhone's clock instead of camera.

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