Pulsing a DC-Motor

Hello y'all,

I am pretty new at this, and I hope you can possibly help me.

I am trying to get into the stuff, by building simple circuits with Simulink and Simscape.

As I was using a DC-Motor, fed by 12V DC-voltage source, I was trying to see, what happens, when I take away the voltage. So put a pulsed trigger in between, wich was supposed to turn on and off the voltage. But it seems, that when the motor is turned on initially, it just keeps going, after I take away the voltage, and I don't know why.

What is it I need to provide, so someone can possibly tell me, where my novice mistake is?!

Thanks in advance.

Timmy