1. Determine the distance it takes for a 25 kg box to stop sliding if it has a speed of 12m/s on a surface with a coefficient of friction of 0.15. 2. W=F*d Coefficient of friction = Force of friction/Normal Force Kinetic energy = 1/2*m*v^2 3. With the mass and the coefficient of friction, I got the force of friction. With the mass and velocity, I got the kinetic energy. Then I divided the Kinetic energy by the force of friction because the Newton's would cancel out and I would be left with meters. Is this the right solution? I checked the answer in the back and it is correct but I'm not sure if this was just a coincidence.