A 8.6{rm kg} dog takes a nap in a canoe and wakes up to find the canoe has drifted out onto the lake but now is stationary. He walks along the length of the canoe at 0.54{rm m/s} , relative to the water, and the canoe simultaneously moves in the opposite direction at 0.14{rm m/s} .
What is the mass of the canoe?