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pooja gupta Grade: 12
        

a spring of force constant k is cut into two equal parts,which are then joined parallel to each other.the force constant of the combined will be??? is the answer 'k'.can u verify it? 

6 years ago

Answers : (1)

vikas askiitian expert
510 Points
										

spring constant of spring of length L is K....


now k is inversly proportional to length ..


  so ,      K2/K1   = L1/L2                          


from here we can compare force constant of two different lengths of  wire of same material..


let force constant of each half is k1 after cutting then


k1/k = L/(L/2)


k1 = 2k


both of these parts are connected parallel so net force constant = 2k+2k=4k


approve my ans if u like it

6 years ago
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