Two springs A and B (k A = 2k B ) are stretched by applying forces of equal magnitudes at the four ends. If the energy stored in A is E. that in B is

Question

Philoid · Accepted Answer

Let X_a and X_b be the extensions produced in the springs A and B,

Restoring force on the spring A,

Restoring force on the spring B,

From the above equations we get,

It’s given that , Therefore

Energy stored in spring A =