How to integrate with respect to new scaled simulation time using integrator block in Simulink?

Hi, I want to solve a second order differential equation using simulink as shown in equation below.

Fff and A are constant. f is input. V is new scaled of simulation time,t. Let say v=100t.

Usually, when the equation is with respect to simulation time,t, it can easily be modeled by using integrator blocks as shown in figure below:

But the problem is those integrator blocks are with respect to simulation time, t. Is there any ways to re-scale the simulation time? Really appreciate any helps. Thanks.