A sphere of mass m is on an inclined plane.All surfaces are smooth.There are total 3 forces acting on the sphere,its weight mg, normal force N2 provided by the
inclined plane.And a vertical stop on the plane provides a horizontal force
N1 to the sphere. It keeps it at rest.Prove that :
N2^2=N1^2+mg^2
F.4 Phy mechanics
2014-01-23 5:43 am
回答 (1)
2014-01-23 6:40 am
✔ 最佳答案
圖片參考：http://imgcld.yimg.com/8/n/HA00388954/o/20140122224008.jpg
如圖太細，可把滑鼠移至圖上，按右鍵，另存圖片到電腦上(例如桌面)，再在電腦上開啓，便會放大了。
收錄日期: 2021-04-13 19:57:07
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140122000051KK00199