A Block of Mass M Is Held Motionless on a Frictionless

question 28

Multiple Choice

A block of mass M is held motionless on a frictionless inclined plane by means of a string attached to a vertical wall as shown in the drawing.
-Assume the plane is not frictionless and the string breaks, what minimum value of the coefficient of static friction, $\mu$ _s, would prevent the block from sliding down the inclined plane?

• A)zero
• B)1
• C)cos \(\theta\)
• D)sin \(\theta\)
• E)tan \(\theta\)

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Definitions:

Pure Monopoly

A market structure where a single seller sells a unique product in the market and no close substitutes exist.

Cartel

Market in which some or all firms explicitly collude, coordinating prices and output levels to maximize joint profits.

Price Strategies

Techniques used by companies to price their products or services with a view to maximizing profits or market share.

Marginal Revenue Function

The rate at which total revenue changes with respect to the output quantity change.