=p78P,.p;=\rp78@\r)\r*I\r+EvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\r@AcQ\nGH0pEL=L,.\nH0pE.\rU2713KU2\r\np;=p78P'=(;\nGHXYp\nUJ\rHXYp\nu],.p;<=78-Mc?\rq¡¢\r21.`?£¤1(2022¥k¦§ ¨,13)
©ª
«\rZ>¬Zp®¯>¬,p5X°±
\rj²0.02mq100Ha,³´µ¶·¸¹ºB»T?Ha¼qGH2C1\r??\n,X½¾pE0.5A$D¿p?À>ZÁÂHaÃÄÅÆÇ>,Ha0\rp>?ÈrÉ*ÊËÌ?Í,
Î?HaÏpÐÑ?Ò:\r(1)
Î0p>?ÔÕ¬Ö\r(2)&Z>,p9820%,X$D*+,-Z×778;\r(3)HaÅÆÇ>CØ0ÙÚÛº?\r@A(l)e=4sin(5Üt)(V)(2)7.1W(3)2m/s\rÝÞßQ
ÎàE..=4V\rT=0.4s\rá3#=5nrad/s\räåp>?ÔÕ¬c=E,“sin3tEvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\ràVe=4sin(5nt)(V)\r(2)æH0p\n#9çäå3=èàV\rV2\rU,-2V2V\ræGHXYp\näå??\né¬ê=ëàV\rnin2\rU2=V2V\r$D78P$\ràV{}Zp×778\r2P$\rP=n1W\r0.2\rìäå2íîp¶·¸¾ÌV\rEa=nBo2ÜRvm\rÝV=2m/s