 |
 |
Pretend the flagpole is not tapered. It is hollow. What is it made of?
|
|
and consider these brass rods as scale models:
Maple beginners: Using Maple as a calculator, determine the "J" value for the flagpole, and for the brass rod on the left (the thickest one) if its length is L. Find out how long it should be should be so that it is a scale model of the flagpole (i.e. has exactly the same dynamics) (using the same frequency in the model and in the flagpole). Ask for help as you need it. Use Google for material data as needed. Refer to the Maple guides on the course homepage as needed.
Experienced Maple users: Find the "J" value of the flagpole. Then use Maple to solve the differential equation exactly and to make a movie of the flagpole's (steady-state sinusoidal-in-time) motion when subject to an earthquake of frequency 0.9Hz. Ask for help as you need it. Use Google for material data as needed. Refer to the Maple guides on the course homepage as needed.