Arrow Hip
My physics homework is due in a couple of hours, and I just don't get this question. ?
The leg and cast in the figure below weigh 200 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w1 weighs 115 N. Determine the weight w2 and the angle α needed so that no force is exerted on the hip joint by the leg plus cast.
help if you want!
must be pharmacy stdnt,
ne wayz, u gota understand that the tension(T) of Weight 1 is the weight that they give you, so use it as ur hypotenuse
Fx=0
so, Tx+(-115cos(40))=0
Tx=88.095
Fy=0
so Ty+115sin40+(-200)=0
Ty=126.07
then , sqrt(88.095^2+126.07^2)=153.79
arctan(126.07/88.095)=55.054
good luck
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