4. A ladder leans against a smooth wall, as shown in the tigure below. (By a "smooth" wall, we mean that the wall exerts on the ladder only a force that is perpendicular to the wall. There is no friction force). The ladder weighs 200 N and its center of gravity is 0.40L from the base, where L is the ladder's length. (aj How large a friction force must exİst at the base of the ladder if it is not to slip? (b) What is the necessary coefficient of static friction? 50 60 200 N 50 FN1 109°0 1010

4. A ladder leans against a smooth wall, as shown in the tigure below. (By a "smooth" wall, we mean that the wall exerts on the ladder only a force that is perpendicular to the wall. There is no friction force). The ladder weighs 200 N and its center of gravity is 0.40L from the base, where L is the ladder's length. (aj How large a friction force must exİst at the base of the ladder if it is not to slip? (b) What is the necessary coefficient of static friction? 50 60 200 N 50 FN1 109°0 1010

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 12.14P: A uniform ladder of length L.and mass m1 rests against a frictionless wall. The ladder makes an...

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