The 2.2 metre double extension ladder extends to 3.7 metres, with a maximum working reach of 4.2 metres, and weighs in at just 6.5 kilos. - consider all of the choices 4. Saved me so much time! Thank you. in $A^{2/3}$ and $B^{2/3}$. which alternative (if any) should be implemented? L^2 &=& (A + x)^2 + (B + y)^2 \\ To avoid overreaching, keep hips within the ladder uprights. Features include unique wrap-around top clips with smooth-glide runners to reduce wear . With $p=2$ it's the usual distance, as in Pythagoras' theorem; with $p=1$ you get taxicab distance; for $p\ge 1$ you get various weird notions of "distance" which still act in some essential ways like the familiar notion; for $0
0$, so let's minimize $L$ as a function of $x$. The area I will will be repairing is 14 feet up the side of the house. \hline 5 & \$ 2,000 & \$ 3,500 & \$ 9,200 \\ Administrative controls. These lumbar supports are usually located on the side and center rails. How large of an object can you carry around a corner? Challenge Had the employee been trained properly in the procedures to do the job safely? For side-step fixed ladders, the side rails and the steps or rungs shall be continuous in the extension. Which is a safety rule for climbing a ladder? Expressions like $(x^p+y^p)^{1/p}$ can be thought of as a more general notion of "distance". Second, there is a bigger picture about this kind of problem if we rephrase the question again by replacing $x,y$ with their reciprocals, we get the $p=-2$ case of the problem. Personal fall arrest snap-hooks must be locking and be: Designed to prevent opening and slipping off the connector. Ladders built and tested in conformance with the applicable provisions of appendix A of this subpart will be deemed to meet this requirement. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Core Element: Workplace hazards.