Question

There particles of equal mass m are connected by two identical massless springs of stiffer constant k, if X1,X2,X3 denote horizontal displacement of the masses from their respective equilibrium position, the potential energy of the system is (A) 1/2k[x1^2+x2^2+x3^3] (B) 1/2k[x1^2+x2^2+x3^2-k2(x1+x3)] (C) 1/2k(x1^2+2x2^2+x3^2+2x3(x1+x3)] (D) 1/2[x1^2+2x2^2+x3^2-2x2(x3+X2)]

Answer 1

Explanation:

$78895652$