Question

Attempt 2 PR A desperate hiker has to think fast to help his friend who has fallen below him. Quickly, he ties a rope to a rock of mass mir and makes his way over the ledge (see the figure). If the coefficient of maximum static friction between the rock and the ground is , and the mass of the hiker is my, what is the maximum mass of the friend, mp, that the rock can hold so the hikers can then make their way up over the ledge? Assume the rope is parallel to the ground and the point where the rope passes over the ledge is frictionless. M mg = m-m Incorrect

Answer 1

T s'ten. MR Don' T Shore, Weight of rock We n= B (telt Hall) magi we have, the equation, f-T=o, I f'=T. =) Tarmag MH+MF) g - T=0 T = (MH + mf) & Comparing and weget; again, pema: MH+ BF Hrel- This is - Prel NPR Ade maximum value of the pricend.