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这篇文章的共同创作者是 Grace Imson, MA. Grace Imson是一位拥有逾40年教学经验的数学老师。她目前是美国旧金山城市学院的数学老师,之前曾在圣路易斯大学的数学系就职。Grace教过小学、初中、高中和大学水平的数学。她拥有圣路易斯大学的教育文学硕士学位,专攻教育管理与监督。
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力能通过推或拉一个对象使其加速或产生位移。牛顿第二运动定律描述了力与质量加速度的关系。这个定律可以用数学方法表示出来。一般来说,物体质量越大,移动所需力越大。你可能需要学习如何计算力来解决一些基本或高级的物理问题。
步骤
小提示
- 一定要仔细阅读问题,是给出了重量还是质量。
- 检查来确保所有单位都是国际标准单位
- 牛顿,也就是力的标准单位是牛=公斤*米/秒^2
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