Question

PRACTICE T Use the worked example above to help you solve this problem. A traffic light weighing 1.01 X 102 N hangs from a vertical cable tled to two other cables that are fastened to a support, as shown in Figure (a). The upper cables make angles of 0, -35.5 and 02 -54.5e with the horizontal. Find the tension in each of Ti Your respo 7 have a mistake in your calculation. Carry out alfintermediate results to at least four-digit accuracy to nse is within 10% of the correct valu, This may be due to roundoff error, or you could minimize roundoff error. N Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. N our differs from the correct answer by more than 10%. Double check your calculations. N EXERCISE HINTS: GETTING STARTED PM STUCK! Use the values from PRACTICE IT to help you work this exercise. Suppose the traffic light is hung so that the tensions T1 and T2 are both equal to 76 N. Find the new angles they make with respect to the x-axis. (By symmetry, these angles will be the same.)

Answer 1

This question is based on following concepts:

1. Resolution of vectors in horizontal and vertical directions

2. Force balance in vertical and horizontal directions for the condition of equilibrium

The detailed solution is described below