Problem: An ice skater whose mass is 50 kg moves with a constant momentum of (400, 0, 300) kg·m/s. During this period of constant momentum, she passes the location (0, 0, 3) m. What was her location at a time 3 s earlier? 1. (−8, 0, −5) m 2. (−24, 0, −15) m 3. (−10, 3, −7) m 4. (8, 0, 5) m 5. (10, 3, 7) m 6. (−20, 0, −14) m 7. (24, 0, 15) m

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Problem Details

An ice skater whose mass is 50 kg moves with a constant momentum of (400, 0, 300) kg·m/s. During this period of constant momentum, she passes the location (0, 0, 3) m. What was her location at a time 3 s earlier?

1. (−8, 0, −5) m

2. (−24, 0, −15) m

3. (−10, 3, −7) m

4. (8, 0, 5) m

5. (10, 3, 7) m

6. (−20, 0, −14) m

7. (24, 0, 15) m

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Our tutors have indicated that to solve this problem you will need to apply the Intro to Momentum concept. You can view video lessons to learn Intro to Momentum. Or if you need more Intro to Momentum practice, you can also practice Intro to Momentum practice problems.

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Based on our data, we think this problem is relevant for Professor Li's class at TEXAS.