A ladder leans against a frictionless wall but is prevented from falling because

Question

A ladder leans against a frictionless wall but is prevented from falling because of friction between it and the ground. Suppose you shift the base of the ladder toward the wall. Tell whether the following become larger, smaller, or stay the same: (a) the normal force on the ladder from the ground, (b) the force on the ladder from the wall, (c) the static frictional force on the ladder from the ground, and (d) the maximum value fs,max of the static frictional force.

Explanation / Answer

a) Normal remains unchanged as force in vertical direction is not changing. b) Now there will be less moment of Normal from ground, => friction will decrease => Force on ladder from wall will decrease c) Friction decreases d) since normal from the ground is unchanged, fs max remains unchanged.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.