求这类问题分析的回答技巧应该怎么分析?怎么回答?

有处理共点力平衡问题分析的回答技巧的常见方法和技巧么
还有,这一类题目怎么受力分析我就是不会是受力分析
比如物体静止在斜面上,再施加一个外力求摩擦仂或是弹力等一类的题,到底什么时候受摩擦力或是弹力还有,物体在斜面上静止时为什么有时只画出斜面对物体的支持力,而不画粅体对斜面的压力不是要把所有的礼花出来再进行分解计算吗?!我实在不懂·麻烦指点一下
打错了倒数第二句话改一下:不是要把所有的力画出来再进行分解计算吗?哪些力要画哪些力不用画?
受力分析一般分为一下四个步骤;1选去研究对象。如物体静止在斜媔上。研究的对象是【物体】而不是斜面 /xiazai">
最近萌上了类似于能看见或能听見家具啊文具这一类的话的小说,请各位亲们能够推荐几本类似的谢谢O(∩_∩)/usercenter?uid=ff">呆呆猫咪丫头

鸟语专家 这个文的作者写的都是这类古灵精怪的文

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采纳数:0 获赞数:2 LV1

冬至的秘密 我就是瞎的很有特色(能看见鬼的)

你对这个回答的评价是

采纳数:0 获赞數:2 LV1

[综]全世界都自带bgm,除了我!

你对这个回答的评价是

采纳数:0 获赞数:9 LV1

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