天国使者7 发表于 2013-12-17 11:34 & Q, c1 m5 q; l. \! X2 a* Q
真行啊,不过最值如何求呢? 1 O( P3 h% o& ?6 T8 W. U- D
大侠,帮我看下,
" F1 V2 Y* }2 v" p, g此时,曲柄成67.26°时,是否出力最大?2 ^5 G1 Y! ^8 ^4 l# h, C
[img=0,1]file:///C:\Documents and Settings\Administrator\Application Data\Tencent\Users\540582613\QQ\WinTemp\RichOle\S%06DTI{PKX%NZP)%BN2[_6.jpg[/img][img=0,1]file:///C:\Documents and Settings\Administrator\Application Data\Tencent\Users\540582613\QQ\WinTemp\RichOle\S%06DTI{PKX%NZP)%BN2[_6.jpg[/img]
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此时,曲柄成15.65°时,出力最小?
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