Figure shows a clothes line attached to four independent pulleys P, Q, R & S. Which of the options represent the correct rotation of pulleys that would result in lowering the clothes line?
The problem involves determining the correct rotation of pulleys P, Q, R, and S to lower a clothes line, as seen in the provided figure. A correct solution requires an understanding of how pulley systems work: when the pulleys rotate to let the rope out, the line lowers. Let's analyze the given options.
If a pulley rotates clockwise, it would typically release rope, assuming a standard right-hand screw orientation.
Conversely, a counterclockwise rotation would take in rope, elevating the line.
Based on these principles, consider the correct answer option:This image depicts the proper rotational directions of the pulleys in the system. Each pulley is set to rotate in a manner that collectively leads to the downward movement of the clothes line. Thus, this option accurately corresponds to the desired outcome of lowering the clothes line.
