Answers Test 2, 2004-2005
You may have a different number of equations depending.
Problem 1:
I had 4 unknowns and 4 equations (Energy and 3 kinematics
equations)
Problem 2:
I had 4 equations and 4 unknowns (Energy, 1 kinematics, 2 LM
rate, 1 AM rate)
Problem 3
I had 4 equations and 4 unknowns (1 AM finite about point of
contact, 2 kinematics, 1 energy)