SOLUTION: 6. A car goes from station A to station B with speed v1, and returns from B to A with speed v2. Station A is a distance d from station B. a. Determine the total time t, for the t

Question 1186709: 6. A car goes from station A to station B with speed v1, and returns from B to A with speed v2. Station A is a distance d from station B.
a. Determine the total time t, for the trip. (Express your answer in terms of v1, v2 and d)
b. What is the total distance traveled for the entire trip? (Express your answers in terms of d)
c. What is the displacement for the entire trip?
d. What is the average speed of the car for the entire trip? (Express your answer in terms of v1 and v2 only)
e. What is the average velocity of the car for the entire trip?

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A car goes from station A to station B with speed v1, and returns from B to A with speed v2. Station A is a distance d from station B.
a. Determine the total time t, for the trip. (Express your answer in terms of v1, v2 and d)
Avg speed for the trip is 2*v1*v2/(v1+v2)
t = 2d/Avg speed.
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b. What is the total distance traveled for the entire trip? (Express your answers in terms of d)
Get serious.
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c. What is the displacement for the entire trip?
Zero.
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d. What is the average speed of the car for the entire trip? (Express your answer in terms of v1 and v2 only)
See (a).
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e. What is the average velocity of the car for the entire trip?
See (a) for avg speed.

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