一个人用滑轮组匀速提升G=128N的的重物,滑轮组的机械效率为百分之80,在4秒内,人用F=40N的力拉绳移动4米(1)计算物体上升的高度(2)画出绕线方式(3)计算出有用功率(4)若不计绳重及摩
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/28 14:36:38
![一个人用滑轮组匀速提升G=128N的的重物,滑轮组的机械效率为百分之80,在4秒内,人用F=40N的力拉绳移动4米(1)计算物体上升的高度(2)画出绕线方式(3)计算出有用功率(4)若不计绳重及摩](/uploads/image/z/3354777-9-7.jpg?t=%E4%B8%80%E4%B8%AA%E4%BA%BA%E7%94%A8%E6%BB%91%E8%BD%AE%E7%BB%84%E5%8C%80%E9%80%9F%E6%8F%90%E5%8D%87G%3D128N%E7%9A%84%E7%9A%84%E9%87%8D%E7%89%A9%2C%E6%BB%91%E8%BD%AE%E7%BB%84%E7%9A%84%E6%9C%BA%E6%A2%B0%E6%95%88%E7%8E%87%E4%B8%BA%E7%99%BE%E5%88%86%E4%B9%8B80%2C%E5%9C%A84%E7%A7%92%E5%86%85%2C%E4%BA%BA%E7%94%A8F%3D40N%E7%9A%84%E5%8A%9B%E6%8B%89%E7%BB%B3%E7%A7%BB%E5%8A%A84%E7%B1%B3%EF%BC%881%EF%BC%89%E8%AE%A1%E7%AE%97%E7%89%A9%E4%BD%93%E4%B8%8A%E5%8D%87%E7%9A%84%E9%AB%98%E5%BA%A6%EF%BC%882%EF%BC%89%E7%94%BB%E5%87%BA%E7%BB%95%E7%BA%BF%E6%96%B9%E5%BC%8F%EF%BC%883%EF%BC%89%E8%AE%A1%E7%AE%97%E5%87%BA%E6%9C%89%E7%94%A8%E5%8A%9F%E7%8E%87%EF%BC%884%EF%BC%89%E8%8B%A5%E4%B8%8D%E8%AE%A1%E7%BB%B3%E9%87%8D%E5%8F%8A%E6%91%A9)
xV[OG+H8^z}bV6UT+64'c@rᖴ$!G$;B
"U}i9gΜ|C37~Ro4̥]C{:=j6"-f(G{mgfnÒQiy?5̕SAVves!O!EH4frV3w4åfU}jV8C?yq<;؆sI-wc,mͨi7l2"jƃ!/our lѰBb;\heΡ֛ZeèCC̍