Any other way to do this questions apart from uncertainty principle?

14 Unattempted A particle of mass m moves under the 1-D potential (x) =V|a|, where V is a positive constant. Using Your Ans Correct Ans a Heisenberg's uncertainty principle Ar Ap, 2, the ground state energy of the particle can be estimated to be Time (Secs) 174 O /3 Bookmark 3 2 4m O 2 hv 3 4m /3 O 1/3 4m O 4m Solution Let Ax 2x: Ap 2Ax 4x For ground state momentum is, Ap p Now., energy E = V% lav| +Vo 2x E 2m 32mx dE = 0 For minmim eneTgy 1/3 h h +2V% =0r= 16mx 32m Vo