Question

In the diagram below, a street light m is hung from a horizonal beam; the beam is supported by a pin at P and by the cable (cord) from the end of the beam to the upper part of the pole. Give n that the beam is uniform and has a mass of 108.3 kg, the angle theta = 35 degree, x_2 = 3.55 m, x_1 = 2.18 m, and that the mass of the street light is m = 98 kg, find the tension in the cable. Use 9.8 m/s^2 and express your answer to three significant digits. Use scientific notation. (Suggestion: Draw a free body diagram of the beam and take torques about P.)

Answer 1