<<<5_56>>
Group (5)_blog
Capture.PNG
Capture.PNG
Ra+Rb=240 ……..(1)

Ma)clockwise=0
60*.4+60*.8+120*2.2-Rb*3=0
336=3Rb
Rb=112 k.n
Ra=128 k.n
c1=128 at 0<x<.4
S=128-60=68 at .4<x<.8
S=128-60+60=8 at .8<x<2.2

S=-112 at 2.1<x<3
2.PNG
2.PNG