1. The problem statement, all variables and given/known data Joe, standing stationary on a beach, sees a small boat of mass M = 179 kg go by at constant speed V = 25.2 m/s. Tom, a man of mass m = 91.8 kg, stands at rest at the back of the boat. Suddenly Tom begins to run toward the front of the boat at speed vrel = 2.93 m/s relative to the boat. Find the speed of the boat v, relative to Joe, while Tom is running. 2. Relevant equations O.K. p = mv 3. The attempt at a solution MV = MV_F + m(V - V_rel) [I thought that Tom is traveling at V - V_rel velocity] MV - m(V - V_rel) = MV_F V_F = MV - m(V - V_rel)/M ...But wrong answer.