A uniform ladder is 1:

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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(a)-(b)

**Transcription for Educational Use**

A uniform ladder is 15 m long and weighs 210 N. In the figure, the ladder leans against a vertical, frictionless wall at a height \( h = 6.5 \, \text{m} \) above the ground. A horizontal force \( \vec{F} \) is applied to the ladder at a distance \( d = 1.6 \, \text{m} \) from its base (measured along the ladder). If force magnitude \( F = 58 \, \text{N} \), what are the (a) \( x \)-, (b) \( y \)-components of the force of the ground on the ladder? If \( F = 140 \, \text{N} \), what are the (c) \( x \)-, (d) \( y \)-components of the force of the ground on the ladder? (e) 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?

---

**Diagram Explanation:**

The diagram illustrates a ladder leaning against a vertical wall. Key elements include:

- An angled ladder (orange) leaning against the vertical wall (pink).
- Height \( h \) marked at 6.5 m from the ground to the point of contact on the wall.
- The horizontal force \( \vec{F} \) applied at a distance \( d = 1.6 \, \text{m} \) from the base along the ladder.
- Coordinate axes with \( x \)-axis parallel to the ground and \( y \)-axis parallel to the wall.

Underneath the diagram are fields for entering answers:

(a) Number ___ Units ___  
(b) Number ___ Units ___

This problem explores statics and mechanics by analyzing the forces acting on the ladder.
Transcribed Image Text:**Transcription for Educational Use** A uniform ladder is 15 m long and weighs 210 N. In the figure, the ladder leans against a vertical, frictionless wall at a height \( h = 6.5 \, \text{m} \) above the ground. A horizontal force \( \vec{F} \) is applied to the ladder at a distance \( d = 1.6 \, \text{m} \) from its base (measured along the ladder). If force magnitude \( F = 58 \, \text{N} \), what are the (a) \( x \)-, (b) \( y \)-components of the force of the ground on the ladder? If \( F = 140 \, \text{N} \), what are the (c) \( x \)-, (d) \( y \)-components of the force of the ground on the ladder? (e) 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? --- **Diagram Explanation:** The diagram illustrates a ladder leaning against a vertical wall. Key elements include: - An angled ladder (orange) leaning against the vertical wall (pink). - Height \( h \) marked at 6.5 m from the ground to the point of contact on the wall. - The horizontal force \( \vec{F} \) applied at a distance \( d = 1.6 \, \text{m} \) from the base along the ladder. - Coordinate axes with \( x \)-axis parallel to the ground and \( y \)-axis parallel to the wall. Underneath the diagram are fields for entering answers: (a) Number ___ Units ___ (b) Number ___ Units ___ This problem explores statics and mechanics by analyzing the forces acting on the ladder.
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