function dsolve for symbolic

please help me for this : som.m

the result of diff equation is Warning: Explicit solution could not be found. thanks in advance

Answer 1

[Walter Roberson]

The solution to your ode alone plus the boundary condition f(0)=0 is the function f(t) = 0 . That fits the f(0)=0 and f'(0)=0 boundary condition. However, the other non-zero boundary condition cannot be met.