Please complete the following:
- You and Tim, who is larger than you, are outside with a wagon. Tim (the bigger person) gets in the wagon and you (the smaller one) pull it. As you pull it, you accelerate until you reach a comfortable velocity. Then you stop and switch places with Tim. Tim now pulls you in the wagon, accelerating from a stop to a comfortable velocity. Now, Tim may be bigger than you, but you have been working out and are just as strong as Tim, so the force that Tim uses to pull the wagon is the same force that you used. You both pull with the exact same amount of force. Who was riding in the wagon when it had the greatest acceleration during start up? Why? Use Newton’s second law to explain.
- Now Sara comes along, and she is the exact same size as you. However, she is even stronger than you! When she pulls you in the wagon, she pulls with a greater force than when you pull her. Now who is in the wagon when it has the greatest acceleration? Explain, using Newton’s second law.
| Excellent | Above Average | Satisfactory | Below Average | |
|---|---|---|---|---|
| Completion and Knowledge | The student shows a full understanding of the topic and thoroughly completed the assignment. | The student shows a good understanding of the topic and met most of the assignment requirements. | The student shows some knowledge of the topic and completed some of the assignment requirements. | The student does not seem to understand the topic and did not complete the assignment. |
