# Answer to Question #73586 in Classical Mechanics for Obasi Ibe

Question #73586

The stiffness of a helical coil spring is given by K = (Gd^4)/(8nD^3) using binomial approximation estimate the change of the rate of steel springs due to change of linear dimension and of the modulus of rigidity from temperature of (i) 20C to 50C (ii) 20C to -50C.

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