如图所示,人重300N,物体重200N,地面粗糙,物体静止,当人用100N的力向下拉绳子时,求人对地面的弹力和地面对物体的弹力及摩擦力大小
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/16 19:10:04
![如图所示,人重300N,物体重200N,地面粗糙,物体静止,当人用100N的力向下拉绳子时,求人对地面的弹力和地面对物体的弹力及摩擦力大小](/uploads/image/z/451143-63-3.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E4%BA%BA%E9%87%8D300N%2C%E7%89%A9%E4%BD%93%E9%87%8D200N%2C%E5%9C%B0%E9%9D%A2%E7%B2%97%E7%B3%99%2C%E7%89%A9%E4%BD%93%E9%9D%99%E6%AD%A2%2C%E5%BD%93%E4%BA%BA%E7%94%A8100N%E7%9A%84%E5%8A%9B%E5%90%91%E4%B8%8B%E6%8B%89%E7%BB%B3%E5%AD%90%E6%97%B6%2C%E6%B1%82%E4%BA%BA%E5%AF%B9%E5%9C%B0%E9%9D%A2%E7%9A%84%E5%BC%B9%E5%8A%9B%E5%92%8C%E5%9C%B0%E9%9D%A2%E5%AF%B9%E7%89%A9%E4%BD%93%E7%9A%84%E5%BC%B9%E5%8A%9B%E5%8F%8A%E6%91%A9%E6%93%A6%E5%8A%9B%E5%A4%A7%E5%B0%8F)
xRjA}iBvvfgv&Q 3;3ͪMlDJii%R(*]zWpvVD;3/Η(ޛf6`7f']`nA?:-']=xgpc'ܚV3<
7B~]wGttn?^t)[و~
HoJD՜{A9ݹoiu4UÐŊWjZPnmxX*:`^ Z-3@&PQĂ(BQ\g:q(1)"6s$g1(G+#}-EΥrZؖ.!RdYH!$"b;}f\z4֛
+:M[7Φ ^>ɞRx6m'Dz6]J?;[_Аά