# Two canoeists in identical canoes exert the same effortpaddling and hence maintain the same speed relative to thewater. One paddles directly upstream (and moves upstream),whereas the other paddles directly downstream. With downstreamas the positive direction, an observer on shore determinesthe velocities of the two canoes to be -1.2 m/s and+2.9 m/s, respectively. (a) What is the speed of the water relativeto the shore? (b) What is the speed of each canoe relativeto the water?

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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 -1.2 m/s and
+2.9 m/s, respectively. (a) What is the speed of the water relative
to the shore? (b) What is the speed of each canoe relative
to the water?

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Step 1

(a)

Step 2

Thus,&nbs...

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