如图,物体甲放在水平桌面上,绳重和滑轮处的摩擦忽略不计,当物体乙重6N时,它恰好能匀速下落,若用一个水平向左的力F甲拉物体,使其向左匀速运动,求F甲的大小.(理由)图
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 18:52:08
![如图,物体甲放在水平桌面上,绳重和滑轮处的摩擦忽略不计,当物体乙重6N时,它恰好能匀速下落,若用一个水平向左的力F甲拉物体,使其向左匀速运动,求F甲的大小.(理由)图](/uploads/image/z/1504797-69-7.jpg?t=%E5%A6%82%E5%9B%BE%2C%E7%89%A9%E4%BD%93%E7%94%B2%E6%94%BE%E5%9C%A8%E6%B0%B4%E5%B9%B3%E6%A1%8C%E9%9D%A2%E4%B8%8A%2C%E7%BB%B3%E9%87%8D%E5%92%8C%E6%BB%91%E8%BD%AE%E5%A4%84%E7%9A%84%E6%91%A9%E6%93%A6%E5%BF%BD%E7%95%A5%E4%B8%8D%E8%AE%A1%2C%E5%BD%93%E7%89%A9%E4%BD%93%E4%B9%99%E9%87%8D6N%E6%97%B6%2C%E5%AE%83%E6%81%B0%E5%A5%BD%E8%83%BD%E5%8C%80%E9%80%9F%E4%B8%8B%E8%90%BD%2C%E8%8B%A5%E7%94%A8%E4%B8%80%E4%B8%AA%E6%B0%B4%E5%B9%B3%E5%90%91%E5%B7%A6%E7%9A%84%E5%8A%9BF%E7%94%B2%E6%8B%89%E7%89%A9%E4%BD%93%2C%E4%BD%BF%E5%85%B6%E5%90%91%E5%B7%A6%E5%8C%80%E9%80%9F%E8%BF%90%E5%8A%A8%2C%E6%B1%82F%E7%94%B2%E7%9A%84%E5%A4%A7%E5%B0%8F.%EF%BC%88%E7%90%86%E7%94%B1%EF%BC%89%E5%9B%BE)
xTKoW+#KYyk*ȦXamRW`@=1c"kta_s`,"uղ@w=;;{wPe4HW>`e7"79ԺV'y{@W{zyk4V57,f&w>-TS]ę55]Ѻ VD"(S4C1Ju=Mb(sIb%[ô^וy/A&e猯7)֢?|
kLeȷގ}c,h,QKhHTlY