1. The problem statement, all variables and given/known data A toy car has a mass of 2 kg moves with initial speed of 2 m/s on a rough horizontal plane of μκ=0.14.A spring with constant of 250 N/m is fixed. Which of the following statements is true ? A) The toy does not approach the spring B) The toy just touch the spring[/url][/IMG] C) The toy compress the spring D) The toy back with constant speed on the surface 2. Relevant equations ΣF = ma Fκ = μκ FN 3. The attempt at a solution ΣF = ma -Fκ = ma Fκ = μκ FN a = - μκg = -0.14 * 10 = - 1.4 m/s^2 vƒ^2 = vi^2 + 2 a d = 4 - 2*1.4*3 = - 4.4 (negative) --> A) The toy does not approach the spring. Can somebody check my answer please ?