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Solve the all given parts of following problem:

Problem: Starting from home, you bicycle 23km north in 2.5h and then turn around and pedal straight home in 1.5h.

Part I: What is your displacement at the end of the first 2.5h?

Part II: What is your average velocity over the first 2.5h?

Part III: What is your average velocity for the homeward leg of the trip?

Part IV: What is your displacement for the entire trip?

Part V: What is your average velocity for the entire trip?

I would really appreciate some help to solve the above problem.

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