For a lab in physics where we have to go through an enormous process to calculate the drag coefficient, I am trying to figure out if one of the values I got along the way makes sense so that I don't continue with bad data. I gathered time and speed deceleration data and drove a 2002 Honda Accord EX with a v6 engine, curb weight 2943 lbs. For this car does a horsepower of 7.68 hp at 55mph sound reasonable? I calculated it in a different way and got about 16 if that makes any more sense. I'm sorry for my total lack of knowledge on this subject, I know I'm probably butchering the terminology, etc.