answer is:T=T=(2/5Wp+Wb/2)/(1+cos45)
ghztomy
2009-03-29 19:56:51
( reads)
方程组:
(1) Wp=T+Wx;
(2) 2/5Wx+Wb/2=Tcos45
方程组解:
T=(2/5Wp+Wb/2)/(1+cos45)
ghztomy
2009-03-29 20:01:33错了，应该为 T=(2/5Wp+Wb/2)/(2/5+cos45)