Consider the "luggage"-pulling demonstration with Deena pulling Annie at constant speed.
a.) Write the symbolic equation for the tension as a function of pulling angle, friction coefficient, and Annie's mass.
b.) If you know the conversion from pounds to kilograms is about 2.2 pounds/kg when the mass is subject to earth's gravity, what was the observed pulling force, TOBS , supplied by Deena (or Annie) in newtons?
c.) Rewrite your symbolic equation from part a.) to allow an estimate for the friction coefficient if the tension, pulling angle, and Annie's mass are known.
d.) Give a numerical prediction for the friction coefficient.
e.) Using your observations of the pulling angle and Annie's mass, what is the predicted pulling force, TPRE , using your equation from part a.) ?
f.) Make a quantitative graph of the tension as a function of pulling angle. What is the angle which requires the least tension? What is the least tension required?