Spring Lab

Please answer the three mini lab questions in your lab document about the spring lab.

Source for Old AP Questions and Answers

Here is the AP Physics C page dedicated to old tests.

http://apcentral.collegeboard.com/apc/members/exam/exam_information/8039.html

Derivation of velocity equation with Air Resistance

The derivation of the equation for the velocity of an object experiencing air resistance was long and tricky.  I've prepared a PDF of it with notes about the steps.  You can find it here.

https://drive.google.com/file/d/0B54jRZBDezIHSnB6UHFaWkRXMlE/view?usp=sharing

There is a minor mistake in the middle of the second page.  Twice I write dt instead of u, in the denominator of the right hand side of the equation.  This is in the section that I've labeled "now collect terms and integrate."

Flying Pigs

Take measurements of the pig's mass, and of the radius, period and the angle of the string's deflection from vertical as it flies in circles.  Calculate the tension in the string in two different ways.  (1.  based on the weight, 2. based on the net force.)
Do the 2 methods come within 5% of each other?  If not, what went wrong?

Answer the 3 minilab questions in your google doc lab file.
https://docs.google.com/document/d/1yVSiC_mXguFtIBFf3f9qZG8buX92i011d1_tuNPzDiw/edit?usp=sharing