# L04c - b The tension in both wires would decrease c The...

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1 / 4 Physics 111 Lecture 4c “The greatness of a nation and its moral progress can be judged by the way its animals are treated.” –Mohandas Gandhi

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Equilibrium Equilibrium Question Example 2 / 4 An object either at rest or moving with a constant velocity is said to be in equilibrium Since vectora = 0 , the net force is zero summationdisplay vector F = 0 (1) As always, it is better to work with components summationdisplay F x = 0 , summationdisplay F y = 0 (2) Example: Find the tension in the two wires that support the 100 N light fixture in the following diagram (see figure)
Question 3 / 4 In the previous example, if we decreased the angles of both wires make with the horizontal from 40 o to 30 o , how would that affect the magnitude of tension in both wires?

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Unformatted text preview: b. The tension in both wires would decrease c. The tension in both wires would remain the same d. The tension in one wire would increase and the tension in the other wire would decrease Example Equilibrium Question Example 4 / 4 ■ Example: Block 1 (mass m 1 = 8 . 00 kg) is moving on a 20 . o incline. This block is connected to block 2 (mass m 2 = 20 . kg) by a massless cord that passes over a massless and frictionless pulley (see Fgure). The coe±cient of kinetic friction between block 1 and the incline is μ k = 0 . 13 . a. What is the acceleration of the blocks? b. What is the tension on the cord?...
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