I was sledding with friends and some1 made a jump and it was a lil icy so we figured it'd make us go faster, hit the jump, fly, and stop. So i go down, hit the jump ( #1) and go backwards. Then I try to roll off so i wont get hurt. I hit the ice from the plow truck ( #2) and hit the driveway to the parking-lot of our local buro building. I hit the ice as im rolling over and fall into the parking lot, i hit my head on the concrete, and my tailbone on the concrete/a peice of ice.IN SO MUCH PAIN.