1. The problem statement, all variables and given/known data A 55kg student stands on a 4.6 kg surfboard moving at 2.0 m/s [E]. The student then walks with a velocity of 1.9 m/s[E] relative to the surfboard. Determine the resultant velocity of the surfboard, relative to the water. Neglect Friction. Answer: 0.25 m/s[E] 2. Relevant equations Conservation of momentum (P = P') 3. The attempt at a solution I plugged in the values given (relative to the water) into the equation, but I'm not getting the right answer ? ms = mass of student mb = mass of board vs = 2.0m/s vb = 2.0m/s vs' = 1.9m/s + 2.0m/s vb' = ?