17.4 Motion’s Effect on Space: Mathematical Form - World Science U

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17.4 Motion’s Effect on Space: Mathematical Form

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Module 17: Motion's Effect on Space: Mathematical Form - Exercise 1a & 1b

Question 1 of 2

1. Question
Your Dachshund is 3 feet long when at rest, the world record. As he races by you, you find that his length is only 2 feet. How fast is he running?
- 1. $.25 c$
- 2. $\frac{\sqrt{3}}{5}c$
- 3. $\frac{\sqrt{5}}{3}c$
- 4. $\frac{2}{3}c$
Correct

Incorrect
Question 2 of 2

2. Question
Later, as a Great Dane runs by, you measure both his length and his speed, finding that he's 4 feet long and zipping ahead at $0.6c$ . What's the dog's length when at rest?
- 1. 5 feet
- 2. 4 feet
- 3. 3 feet
- 4. $\sqrt{\frac{4}{.6}}$ feet
Correct

Incorrect

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