Fundamentals of Physics Extended 12th Edition · Equilibrium and Elasticity · Problem Problem_73
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Halliday, Resnick & Walker — Equilibrium and Elasticity: Problem Problem_73
A uniform ladder is 10 m long and weighs 200 N. In Fig. 12.64, the ladder leans against a vertical, frictionless wall at height h = 8.0 m above the ground. A horizontal force \(\vec{F}\) is applied to the ladder at distance d = 2.0 m from its base (measured along the ladder). (a) If force magnitude F = 50 N, what is the force of the ground on the ladder, in unit-vector notation? (b) If F = 150 N, what is the force of the ground on the ladder, also in unit-vector notation? (c) Suppose the coefficient of static friction between the ladder and the ground is 0.38; for what minimum value of the force magnitude F will the base of the ladder just barely start to move toward the wall?
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주어진 조건: 10 m, 200 N, . In, 8.0 m, . A, 2.0 m
구하는 것: (a) If force magnitude F = 50 N; (b) If F = 150 N; (c) Suppose the coefficient of static friction between the ladde
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Fundamentals of Physics Extended · 12th Edition
저자: Halliday, Resnick & Walker
출판사: Wiley
단원: Equilibrium and Elasticity