檢視作用线的原始碼

[[File:U=496846053,1802789503&fm=26&gp=0.jpg|缩略图|作用线[https://image.baidu.com/search/detail?ct=503316480&z=undefined&tn=baiduimagedetail&ipn=d&word=%E4%BD%9C%E7%94%A8%E7%BA%BF&step_word=&ie=utf-8&in=&cl=2&lm=-1&st=undefined&hd=undefined&latest=undefined&copyright=undefined&cs=496846053,1802789503&os=1361687423,2181597114&simid=4212217601,587496725&pn=25&rn=1&di=59620&ln=1239&fr=&fmq=1617974566384_R&fm=&ic=undefined&s=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&is=0,0&istype=0&ist=&jit=&bdtype=0&spn=0&pi=0&gsm=0&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%253A%252F%252Fa4.att.hudong.com%252F27%252F19%252F16200000032649131303190257837_s.jpg%26refer%3Dhttp%253A%252F%252Fa4.att.hudong.com%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Djpeg%3Fsec%3D1620566565%26t%3Dc1389647f236b74ca1de197423dca3f8&rpstart=0&rpnum=0&adpicid=0&force=undefined 图片来源百度网][https://image.baidu.com/search/detail?ct=503316480&z=undefined&tn=baiduimagedetail&ipn=d&word=%E4%BD%9C%E7%94%A8%E7%BA%BF&step_word=&ie=utf-8&in=&cl=2&lm=-1&st=undefined&hd=undefined&latest=undefined&copyright=undefined&cs=496846053,1802789503&os=1361687423,2181597114&simid=4212217601,587496725&pn=25&rn=1&di=59620&ln=1239&fr=&fmq=1617974566384_R&fm=&ic=undefined&s=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&is=0,0&istype=0&ist=&jit=&bdtype=0&spn=0&pi=0&gsm=0&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%253A%252F%252Fa4.att.hudong.com%252F27%252F19%252F16200000032649131303190257837_s.jpg%26refer%3Dhttp%253A%252F%252Fa4.att.hudong.com%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Djpeg%3Fsec%3D1620566565%26t%3Dc1389647f236b74ca1de197423dca3f8&rpstart=0&rpnum=0&adpicid=0&force=undefined 原图链接]]]
通过力的[[作用点]]沿力的方向所画的直线叫力的作用线，通过动力的作用点沿动力的方向所画的直线叫[[动力作用线]]，通过阻力的作用点沿阻力的方向所画的直线叫阻力作用线。在讨论机械、功、力时常作为一个考虑因素。 <ref>[闫金铎．《物理 八年级下册》：北京师范大学出版社，2013.12 第二版]</ref> 

'''中文名''':[[作用线]]

'''外文名''':[[The line of action]]

'''特    点''':通过力的作用点

'''方    向''':与力的方向重合