vrizaaa vrizaaa 10-08-2020 Physics contestada A ferry boat sails east across a lake at 10 km/h. A woman is walking east on the boat at 1.5 km/h. What is her speed relative to the boat? A. 8.5 km/h west B. 8.5 km/h east C. 1.5 km/h east O D. 1.5 km/h west