|H. E. Smith||Fall 2002|
Physics 11a - Lecture #6
Using Newton's Laws
15 October 2002
Question for next lecture: A farmer hitches up his horse to his wagon to carry a load of halloween pumpkins into town. The horse protests: "I will not be able to pull the Wagon into town."
"Why not?!" enquires the farmer.
"Physics!" replies the horse, "specifically Newton's Third Law which requires that no matter how hard I pull on the wagon, the wagon will pull back on me with equal force. The harder I pull forward, the harder the wagon will pull backward, so that no forward motion can result."
What is the problem here?
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