BOTH. VEHICLES WERE MOVING. THE EXPLORER FRONT HIT THE RIGHT REAR PANEL OF A 2011 FORD RANGER. BOTH VEHICLES WERE GOING APPROXIMATELY 30 MPH. NO INJURIES SUSTAINED BY EITHER DRIVER. MY FORD EXPLORER AIR BAGS DID NOT DEPLOY. I WAS ON A CITY STREET THE OTHER VEHICLE WAS JUST BEGINNING TO TURN.