Three Objects Are Connected by Weightless Flexible Strings as Shown

question 4

Short Answer

Three objects are connected by weightless flexible strings as shown in the figure. The pulley has no appreciable mass or friction, and the string connected to the block on the horizontal bench pulls on it parallel to the bench surface. The coefficients of friction between the bench and the block on it are µ_s = 0.66 and µ_k = 0.325. You observe that this system remains at rest.
(a) Find the mass of the hanging object A.
(b) What is the magnitude of the friction force on the block on the bench?

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Definitions:

Elastic Portion

The segment of a demand curve where the quantity demanded changes significantly as a result of price changes, indicating high price elasticity of demand.

Demand Curve

A graphical representation showing the relationship between the price of a good or service and the quantity demanded by consumers at those prices.

Price Makers

Entities that have the ability to control the prices of the products or services they offer, due to lack of significant competition.

Downward-Sloping Demand

Describes the general tendency for the demand for a good or service to decrease as its price increases.