摘要
用弹簧伸长长度表示力的大小,利用圆框线夹固定各拉力,研究共点力的平衡条件,并验证力的平行四边形定则.
The strength of force was represented by the elongation of spring ,and the pulling force was fixed by circular spring clamp .The balance condition of concurrent force was studied ,and the composition law of force was verified .
出处
《物理实验》
2014年第10期15-17,共3页
Physics Experimentation
关键词
共点力
平衡条件
力的合成
平行四边形定则
concurrent force
balance condition
composition of force
parallelogram law
