A 50-M Long, 12-Kg, Ladder Rests Against a Smooth Vertical Wall

question 61

Multiple Choice

A 5.0-m long, 12-kg, ladder rests against a smooth vertical wall with the bottom of the ladder 3.0 m from the wall. The coefficient of static friction between the floor and the ladder is 0.28. What distance, measured along the ladder from the bottom, can a 60-kg person climb before the ladder starts to slip?

• A)4.0 m
• B)3.7 m
• C)1.7 m
• D)1.3 m
• E)3.3 m

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Definitions:

Dendrites

The branched projections of a neuron that act to propagate the electrochemical stimulation received from other neural cells to the cell body, or soma, of the neuron from which the dendrites project.

Synapses

The junctions at which neurons communicate with other neurons, muscles, or glands through electrical or chemical signals.

Neurons

Specialized cells within the nervous system that transmit information to other nerve cells, muscle, or gland cells.

Primary Function

The primary function refers to the main or most important role or purpose that an entity or system is designed or naturally evolved to perform.