If you fall 3 meters, the earth is pulled you down 3 meters, but you have also exerted an equal and opposite force on the earth.
如果你下降3米,就是说地球把你向下拉3米,但你也对地球施加了一个大小相等,方向相反的力。
The ban on smoking in long-distance trains, ships, airports' smoking rooms and entries to railway stations and airports no closer than 10 meters will enter into force in 2014.
对在长途火车、轮船、机场吸烟间和火车站与机场入口处不足10米的范围内的吸烟禁令将于2014年开始生效。
Our factory has assets over 10 million, plant more than 20,000 square meters, and strong technical force with 200 workers, engineers 6, professional expertise18.
我厂现有资产2千多万,厂房2万多平方米,职工200余名,工程师6名,专业技术、质检员18名,技术力量雄厚。
The early November winds reached hurricane force and caused waves eleven meters high.
VOA: special.2009.11.11
So, the way to measure force is in kilogram meters per second squared.
所以,力的单位是千克米每秒平方
If your plan is to accelerate a 3 kg mass with an acceleration of 2 meters per second, you better have a rope that can furnish that force and it can take the tension of 6 Newtons.
如果你想用 2 米每秒平方的加速度,去拉一个 3 千克的物体,那么你就需要一根能提供拉力的绳子,并且它能够承受 6 牛的张力
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