A beam is mounted vertically as shown below with one end mounted in a well oiled swivel. There are two strings attached as shown to the beam. The spring in the right string has a spring constant of 20N/cm and is stretched by 2cm. The distance, L, from the pivot to the left string is 30cm. What is the tension in the left string? 1.Externa| Objects Directly Exerting Forces on Beam? 2.Extended Force Diagram for Beam? (Do not model as point) 3.Which Forces have known magnitudes? 4.Choose reference point for torque to eliminate unknown forces we do not care about, but keep the torque due to the tension by the left string on the beam, so we can find it, then do it