Center of Mass & Simple Balance Video Lessons

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Problem: A student of mass 62 kg wants to walk beyond the edge of a cliff on a heavy beam of mass 340 kg and length 11 m. The beam is not attached to the cliff in any way, it simply lies on the horizontal surface of the clifftop, with one end sticking out beyond the cliff’s edge. How far from the edge of the ledge can the beam extend if it sticks out as far as possible beyond the edge, but the student can walk to the beam’s end without falling down? 1. 3.73362 2. 2.44755 3. 2.62215 4. 3.2345 5. 4.59569 6. 4.72158 7. 4.10294 8. 5.15837 9. 4.65174 10. 2.26349

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Problem Details

A student of mass 62 kg wants to walk beyond the edge of a cliff on a heavy beam of mass 340 kg and length 11 m. The beam is not attached to the cliff in any way, it simply lies on the horizontal surface of the clifftop, with one end sticking out beyond the cliff’s edge. How far from the edge of the ledge can the beam extend if it sticks out as far as possible beyond the edge, but the student can walk to the beam’s end without falling down?

1. 3.73362

2. 2.44755

3. 2.62215

4. 3.2345

5. 4.59569

6. 4.72158

7. 4.10294

8. 5.15837

9. 4.65174

10. 2.26349

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Center of Mass & Simple Balance concept. You can view video lessons to learn Center of Mass & Simple Balance. Or if you need more Center of Mass & Simple Balance practice, you can also practice Center of Mass & Simple Balance practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Jeffery took 3 minutes and 28 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

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