1. Problem statement, all variables and given/known data. A sled weighs 2 newtons. It is set in motion over a frictionless surface by a rocket motor with a weight of 1 Newton. After the fuel has been expended, the sled is coasting at a speed of 2m/s. How much horizontal force did the rocket exert on the sled while the fuel was burning? You may ignore the mass of the fuel. Is it a) 4N b) 6N c) 12N d) Not enough information 2. Relevant equations. Constant acceleration Vf = vo + at X = vot + 1/2at^2 Vf^2 = vo^2 + 2ax F = ma 3. Attempt. I drew a free body diagram but it lead me no where cause I don't see how I can use any of the vertical components to the find the horizontal force.