Numerical - Spring stiffness of equivalent system, connected in series

Q.  Two springs have spring stiffness of 1500 N/m and 2000 N/m respectively. If they are connected in series, what is the spring stiffness if they are replaced by an equivalent system.3500 N/m
- Published on 11 Sep 15

a. 3500 N/m
b. 1166 N/m
c. 857.63 N/m
d. None of the above

ANSWER: 857.63 N/m

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    Discussion

  • shahrukh asif sayyed   -Posted on 04 Sep 20
    Spring In series Formula Is 1/ke=1/k1+1/k2
    Here In This Quation K Values Are Given k1=1500 N/M K2=2000 N/M
    1/Ke=1/1500+1/2000
    1/Ke=1.166666667x10^-3
    Ke= 1/1.166666667x10^-3
    Ke=857.14 N/M ANS.

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