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Using constraint equations find the relation between a_1 and a_2 |
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Answer» Solution :Point 1,2,3 and 4 are movable. LET their dis-placement from a fixed line be ` x_1 , x_2 , x_3 and x_4` `x_1 + x_3 =l_1` `(x_1 - x_3 )+ ( x_4- x_3) =l_2` ` (x_1 - x_4 ) + (x_2 - x_4) = l_3` On double differentiating with respect to TIME , we will get following three constraint RELATIONS : ` a_1 + a_3 =0` ....... (i) `a_1 + a_4 - 2a_3 =0`........ (ii) `a_1 + a_2 - 2a_4 =0`............ (III) SolvingEqs. (i) ,(ii) and (iii) , we get ` a_2=-7a_1 ` Which is the desired relation between ` a_1 and a_2` 
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