You’re back at the playground, one engineering degree later. Now you’re a playground engineer! (We swear that’s a position)
Your current task is to build a pirate ship themed playground. You’re designing a “walk the plank” section, but then realize some dumb adult could break it. The plank is 6 feet and fastened to the edge of the ship. Let’s say that the average adult male weighs 180 lbs, but when he jumps, it doubles to about 360 lbs.
What amount of torque should the joint be expected to support from the childlike adult?