A uniform beam of length, L, and mass, M, is freely pivoted at one end about an attachment point in a wall. The other end is supported by a horizontal cable also attached to the wall, so that the beam makes an angle phi with the horizontal as shown below. To answer the questions below, find algebraic expressions for the tension in the cable, the angular acceleration of the beam, should the cable break, and the resulting angular velocity as the beam falls through the vertical position. If L = 1.8 m, M = 15 kg, and phi = 30o, then what is the tension in the cable? If the cable snaps, what is the angular acceleration about the pivot point? What is the angular velocity of the falling beam, just as it hits the wall?
A uniform beam of length, L, and mass, M, is freely pivoted at one end about an attachment point in a wall. The other end is supported by a horizontal cable also attached to the wall, so that the beam makes an angle phi with the horizontal as shown below. To answer the questions below, find algebraic expressions for the tension in the cable, the
If L = 1.8 m, M = 15 kg, and phi = 30o, then what is the tension in the cable?
If the cable snaps, what is the angular acceleration about the pivot point?
What is the angular velocity of the falling beam, just as it hits the wall?
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