Question

0 Review for Exam 3: Ladder Problem Example * Find the minium Psa? he mininum amount of friction, has to be Some since the laddar is not moving & & Find the mininum amor JarFsine x:&x=0 4 f. Fw=0 - S = Fw { Ting 1 mg sin (90-e) Y:{Fy=0 Jew= L Fwsino 4n-mg=0 f: nps Eso nang - Imgsin (90-0) + L Fusine 0 sin (90-0) = L Ewsinero = Imgcose = LF wsine mgcoso: LnM: Sino = 1 mg cose= Lingls sine cose: Vi sino Elper som

How would you solve this same question but a person is standing on the ladder?

Answer 1

Leta person of mass M is slonding on Laaden at a distonce Į from top { F = 0 = Fw=fon { fy=0 = namg + Mg ang = - ong caso ? Mo = -32 na Mocano Tw=LFw sino {t=0 L Fw sino = 32 Mg coso + ₂ mg coso kus (m+M)& sing = xg[ 3 Met Im caso us = (a M+ /2m) coso Mam sine