Push-Away Problems Video Lessons

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Problem: A man whose mass is 85 kg and a woman whose mass is 50 kg sit at opposite ends of a canoe 5 m long, whose mass is 45 kg. Assume the man is seated at x = 0 and the boat extends along the positive x axis with the woman at the other end. Suppose that the man moves quickly to the center of the canoe and sits down there, while the woman moves quickly 1/3 the length of the canoe towards the man. How far does the canoe move in the water? Assume force of friction between water and the canoe is negligible. 1. 0.972222 2. 0.864865 3. 0.72 4. 1.18056 5. 0.903226 6. 3.29 7. 1.59375 8. 1.13636 9. 0.944444 10. 1.35484

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Problem Details

A man whose mass is 85 kg and a woman whose mass is 50 kg sit at opposite ends of a canoe 5 m long, whose mass is 45 kg. Assume the man is seated at x = 0 and the boat extends along the positive x axis with the woman at the other end. Suppose that the man moves quickly to the center of the canoe and sits down there, while the woman moves quickly 1/3 the length of the canoe towards the man. How far does the canoe move in the water? Assume force of friction between water and the canoe is negligible.

1. 0.972222

2. 0.864865

3. 0.72

4. 1.18056

5. 0.903226

6. 3.29

7. 1.59375

8. 1.13636

9. 0.944444

10. 1.35484

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