In the Figure, a Uniform Ladder 12 Meters Long Rests

question 40

Short Answer

In the figure, a uniform ladder 12 meters long rests against a vertical frictionless wall. The ladder weighs 400 N and makes an angle θ of 79° with the floor. A man weighing 790 N climbs slowly up the ladder. When he has climbed to a point that is 7.8 m from the base of the ladder, the ladder starts to slip. What is the coefficient of static friction between the floor and the ladder?

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Definitions:

Cost Curves

Graphical representations used in economics to show the costs of producing a certain number of goods, underlining concepts like marginal cost and average cost.

Identical

Exactly the same, without any difference.

Long-run Equilibrium

A state in which all factors of production can be adjusted, allowing for the optimal allocation of resources in a market or economy over time.

Identical Cost Curves

These are cost curves for different firms that have the same shape and attributes, indicating that the firms have the same cost structure at various levels of output.