Physics Principles and Problems 2009

Section 6.3 : Relative Velocity

Self-Check Quizzes

1
A bus is traveling at a velocity of 6 m/s in a positive direction. You walk with a velocity of 2 m/s toward the front of the bus. Given the velocity of the bus relative to the road and your velocity relative to the bus, what is your velocity relative to the road?
A)4 m/s
B)8 m/s
C)10 m/s
D)12 m/s
2
You are riding in a boat that is traveling 15 m/s in still water. You move from the bow to the stern at 3 m/s. What is your speed relative to the water?
A)9 m/s
B)10 m/s
C)12 m/s
D)18 m/s
3
A boat is rowed upriver at 3 m/s relative to the water. Viewers on shore see that the boat is moving 0.5 m/s relative to the shore. What is the speed of the river?
A)2.5 m/s against the boat
B)3.5 m/s against the boat
C)–2.5 m/s against the boat
D)–3.5 m/s against the boat
4
You row a boat perpendicular to the shore of a river that flows 3 m/s. The velocity of your boat is 4 m/s relative to the water. What is the velocity of your boat relative to the shore?

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A)1 m/s
B)5 m/s
C)7 m/s
D)15 m/s
5
You are riding a train traveling 40 m/s. You move toward the back of the train at 2 m/s relative to the train. What is your speed relative to the train tracks?
A)2 m/s
B)38 m/s
C)40 m/s
D)42 m/s
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