I WAS DRIVING EASTBOUND, ON A CITY STREET, APPROACHING THE INTERSECTION WITH A STOP SIGN. WHEN I PRESSED ON THE BRAKES, IT DIDN'T SLOW DOWN. IN FACT, THE CAR WAS GOING FASTER. SO I PUT THE CAR IN PARK, HOPING TO SLOW IT DOWN, BUT IT DIDN'T WORK. THEN I JUMPED THE CURB, HOPING THAT WOULD SLOW THE CAR DOWN, BUT IT DIDN'T WORK. I TRIED TO AVOID HITTING A TRUCK THAT WAS GOING NORTHBOUND ON THE CROSS ROAD, BUT I COULDN'T AVOID IS SO I HIT THE TRUCK.