Question

If two spring of stiffness k1 and k2 are connected in series the stiffness of the combined spring is

Answer 1

if two springs of stiffness k1 and k2 are connected in series,then the stiffness of the combined series is

$\frac{(k1)(k2)}{k1 + k2}$

Answer 2

if two springs of stiffness k1 and k2 are connected in series,then the stiffness of the combined series is

\frac{(k1)(k2)}{k1 + k2}

k1+k2

(k1)(k2)