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1. Is the average speed of a vehicle a vector or a scalar quantity? Provide a...

1. Is the average speed of a vehicle a vector or a scalar quantity? Provide a reason for your answer.

2. A jogger runs along a straight and level road for a distance of 8.0 km and then runs back to her starting point. The time required for this round-trip is 2.0 h. Which of the following statements is true and explain why.

a) Her average speed is 8.0 km/h, but there is not enough information to determine her average velocity.
b) Her average speed is 8.0 km/h, and her average velocity is 8.0 km/h.
c) Her average speed is 8.0 km/h, and her average velocity is 0 km/h.
3. Which of the following displacement vectors (if any) are equal? Explain your reasoning.
Vector Magnitude Direction
a 100 m 30° north of east
b 100 m 30° south of west
c 50 m 30° south of west
d 100 m 60° east of north


4. Are two vectors with the same magnitude necessarily equal? Give your reasoning.

Answer each question thoroughly and in complete sentences.
Were there any parts of the reading or concept questions that were unclear?

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Answer #1

2 ㄣ 2 מ8.0 o lm and hex avere te ae

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