In the Figure,a Uniform Ladder 12 Meters Long Rests Against

question 47

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 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:

CCA

Cold Cranking Amps; a rating used to describe a battery's ability to start an engine in cold temperatures.

Sealed Lead-Acid Battery

A type of rechargeable battery that uses lead peroxide and sponge lead, contained in a sealed unit to prevent leakage and reduce maintenance.

Carbon Pile Testing

A method for assessing the performance of an electrical component or system, such as a battery or alternator, by applying adjustable loads.

Degrees Fahrenheit

A scale for measuring temperature where the freezing point of water is 32 degrees and the boiling point is 212 degrees under standard atmospheric conditions.