Preflight assignment 3


Please type your name in the form: Last, First

NOTE!! In the line below please type in your CU userid, that's the username you use to log in to CULearn. We do NOT want your password. Your CU userid probably looks like your last name, perhaps with a few extra characters. Note that it is definitely NOT your numerical (9 digit) student ID!
This script cannot "error check", you have to be sure you type it in correctly! Thanks

Please type your CU userid:


When you are satisfied with your response, you must click the SUBMIT button at the bottom of this page.




  1. Look again at Taylor Example 2.3. Tell us, mathematically and in words, what is meant by the symbol "tau"?




  2. Review Taylor Example 2.5. Assuming you have two spheres made of the same material, but one has a larger diameter. When dropped in air, which one will reach the higher terminal velocity, the bigger one or the smaller one? Explain.


  3. Suppose you are in an airplane flying in level flight and you want to drop something out of the plane so that it lands at a particular spot on the ground below. If there's no drag, you have to drop the object at a certain time in order to hit your target on the ground. If there is drag, do you need to drop later or earlier in order to hit the same spot on the ground? Please explain your reasoning


  4. Please submit a question you have about the reading assigned for the upcoming class. What seemed hard, was something confusing, what would you like us to spend class time on? If you can't come up with any question, how about a comment - (did anything strike you as interesting? )
    Reminder: the reading assignments are on our course calendar


    Thanks for your time.

Optional! - below is a space for any additional relevant comments, thoughts, or suggestions you have.




When you are satisfied with your responses click the SUBMIT button.