WHILE ATTEMPTING TO STOP AT A RED TRAFFIC LIGHT, WE APPLIED PRESSURE TO THE BRAKES. HOWEVER, THE BRAKES DID NOT RESPOND AND IT APPEARED THAT THE CAR ACCELERATED. TO AVOID HITTING THE CAR IN FRONT OF US, WE TURNED TOWARDS THE SHOULDER AND UP A SMALL HILL. WE HIT A TREE ON THE SMALL HILL THAT CAUSED THE CAR TO FLIP UPSIDE DOWN. POLICE AND EMS RESPONDED TO THE SITE OF THE ACCIDENT TO REMOVE US FROM THE CAR AND EVALUATE/TREAT US FOR INJURIES.