A Uniform Ladder 12 Meters Long Rests Against a Vertical

question 57

Short Answer

A uniform ladder 12 meters long rests against a vertical frictionless wall,as shown in the figure.The ladder weighs 400 N and makes an angle θ = 51° with the floor.A man weighing 874 N climbs slowly up the ladder.When he is 78 m from the bottom of the ladder,it just starts to slip.What is the coefficient of static friction between the floor and the ladder?

---

Definitions:

Function

In mathematics and computer science, a specific relation or expression involving one or more inputs and a single output.

Anal Stage

A phase in Freud's psychosexual development theory where pleasure is focused on the anal region and issues around control and order arise.

Erotic Feelings

Emotions and sensations associated with sexual attraction and desire.

Psychosexual Development

A Freudian concept describing how personality develops through stages centered on erogenous zones.