1. You and your friend walk into the physics lab one day and see the impossible! Your TA is holding one end of a 15.00m long wooden beam (you estimate its mass to be 30kg). The far end of the beam is resting on one of the lab benches so that the beam is horizontal. A total of 100 Active Learning Guides (mass 2.0kg each) are stacked up on the beam 1.00m from the far end. Your friend says "Wow, I had no idea our TA was that strong! They can exert a force of (1002.0kg +30kg) (9.8 N/kg) = 2250N, which is more than 500 pounds!" a. You're not so sure about this... Explain the problem(s) with your friend's reasoning. b. What is the magnitude of the force your TA is really exerting? c. Describe any assumptions you made in your mathematical method.