WHILE COMING TO A STOP AT A STOPLIGHT, A CAR COME OUT IF NO WHERE. I TRIED TO SLAM ON THE BRAKE TO COME TO A STOP FASTER BUT THE BREAKING SYSTEM DID NOT REACT TO THE PEDAL BEING PRESSED DOWN. I WAS MET WITH A STIFF PEDAL AND I COULD FEEL THE BRAKES PUSHING BACK WHICH CAUSED ME TO HIT ANOTHER CAR THAT HAD ALREADY ENTERED INTO AN INTERSECTION.