1I,m just getting
T1/H1=T2/H2=T3/H3=W/3A
by applying vector method
where A distance of centre of mass from hinge
the problem is that i am not able to express A in terms of the given quantities
can anybody help?
threads of lengths h1 ,h2 and h3 are fastened to the vertices of a homogenous triangular plate of weight W
The other ends are fastened to a common point,as shown in the figure
What is the tension in each thread, expressed in the given terms?
I ve almost solved it but coudnt get the answer
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13 Answers
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1suppose hinge as origin..
then pos. vector of three pts. H1,H2,H3 ISN'T A=(H1+H2+H3)/3??
1ith power what if a= h1+h2+h3/3
it is only in the vector form
we cant write the answer in that form
9rohan
i got the same ans u got
and its the right ans
considering hinge as O
you would ve got Σy=0 ,Σx=0,Σz=3A
co ordinates x,y,z have infinite solutions
hence Σz isnt a constant
but the proportionality holds true always
9yes i got a more specific one that
Σy=0 ,Σx=0,Σz=3A
implying A vector to be along z axis
9yes i got a more specific one that
Σy=0 ,Σx=0,Σz=3A
implying A vector to be along z axis