把自由落体运动下落的总位移分成长度相等的三段,按从上到下的顺序,经过这三段位移的平均速度之比.解答如下:S=1/2at1^22S=1/2at2^23S=1/2at3^2所以t1:t2:t3=1:2^1/2:3^1/2所以对应三段位移的时间之比
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 20:51:35
![把自由落体运动下落的总位移分成长度相等的三段,按从上到下的顺序,经过这三段位移的平均速度之比.解答如下:S=1/2at1^22S=1/2at2^23S=1/2at3^2所以t1:t2:t3=1:2^1/2:3^1/2所以对应三段位移的时间之比](/uploads/image/z/12672900-36-0.jpg?t=%E6%8A%8A%E8%87%AA%E7%94%B1%E8%90%BD%E4%BD%93%E8%BF%90%E5%8A%A8%E4%B8%8B%E8%90%BD%E7%9A%84%E6%80%BB%E4%BD%8D%E7%A7%BB%E5%88%86%E6%88%90%E9%95%BF%E5%BA%A6%E7%9B%B8%E7%AD%89%E7%9A%84%E4%B8%89%E6%AE%B5%2C%E6%8C%89%E4%BB%8E%E4%B8%8A%E5%88%B0%E4%B8%8B%E7%9A%84%E9%A1%BA%E5%BA%8F%2C%E7%BB%8F%E8%BF%87%E8%BF%99%E4%B8%89%E6%AE%B5%E4%BD%8D%E7%A7%BB%E7%9A%84%E5%B9%B3%E5%9D%87%E9%80%9F%E5%BA%A6%E4%B9%8B%E6%AF%94.%E8%A7%A3%E7%AD%94%E5%A6%82%E4%B8%8B%EF%BC%9AS%3D1%2F2at1%5E22S%3D1%2F2at2%5E23S%3D1%2F2at3%5E2%E6%89%80%E4%BB%A5t1%3At2%3At3%3D1%3A2%5E1%2F2%3A3%5E1%2F2%E6%89%80%E4%BB%A5%E5%AF%B9%E5%BA%94%E4%B8%89%E6%AE%B5%E4%BD%8D%E7%A7%BB%E7%9A%84%E6%97%B6%E9%97%B4%E4%B9%8B%E6%AF%94)
xUN@~AGoQc$ *%#?F8
I B@IBNw}:&(R/Hݙf̥c]}LD|{ujt\tmȦYV*Μ#JY!G5ƛhN,A.;*%axGXNǀ2d%/0s#-Դ0YҔ]U
i2". ?!_X`;VbR""EZZO7^KM: =,;E
b*&t
zZa jayzu]r)BsnUAM:ͱs4xds-b<~-##TƇ)qs{^&:'ݧю;%F8jymk{7]R⸽JU>lH+`>x^qS\yAB%v2 kx=T5J?yiٍPoc>[DP\l}$;b3g^V }ECqNJ"i8hC#_)"]1pY`1o/=sE-p"n#nXA X