Physics 12 - Quiz #6

Boats on a River

Boats A and B leave the west side of a river at the same time. Boat A has a speed of 5.0 m/s with respect to the shore and a course 300 north of east. Boat B has a speed of 2.5 m/s with respect to the water and a heading 550 south of east. The river flows at 1.5 m/s due south and is 200 m wide.

 

a) What is the velocity of Boat A relative to the water? (4 marks)

b) How many meters upstream is Boat A when it reaches the east side of the river? (3 marks)

c) What is the velocity of Boat B relative to the shore? (5 marks)

d) How many seconds does it take for Boat B to cross the river? (3 marks)


 

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