Two canoeists in identical canoes exert the same effort paddling and hence maintain the same speed relative to the water. one paddles directly upstream (and moves upstream), whereas the other paddles directly downstream. with downstream as the positive direction, an observer on shore determines the velocities of the two canoes to be −1.9 m/s and +2.8 m/s, respectively. what is the speed of each canoe relative to the water?

explanation:

newton's third law, for every action there is an equal and opposite reaction.

colorectal cancer may also develop from areas of abnormal cells in the lining of the colon or rectum. this area of abnormal cells is called dysplasia and is more commonly seen in people with certain inflammatory diseases of the bowel such as crohn's disease or ulcerative colitis.

they should be similar or the same

a and b sometimes have a positive value