Two helical compression springs are to be used together with one nested inside the other on a common center-line. The outer spring has an inside diameter of 1:5 in, a wire diameter of 0:125 in, and 10 active coils. The inner spring has an outside diameter of 1:25 in, a wire diameter of 0:092 in and 13 active coils. Both springs have the same free length and a modulus of 11:75 Mpsi. (a) Find the spring constant for each spring. (b) Find the force necessary to compress the assembly by 1 in. (c) At a de ection of 1 in, which spring is more highly stressed