A 12-Kg Mass Is Placed on a 25 $\degree$ Incline, and Friction Keeps It from Sliding

question 14

Multiple Choice

A 12-kg mass is placed on a 25.0 $\degree$ incline, and friction keeps it from sliding. The coefficient of static friction in this case is 0.580, and the coefficient of sliding friction is 0.520. What is the frictional force in this situation?

• A) 55.4 N
• B) 107 N
• C) 49.7 N
• D) 61.2 N

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Definitions:

Vasodilate

The process of widening blood vessels to increase blood flow.

Blood Pressure

The force exerted by circulating blood upon the walls of blood vessels, often measured for diagnosis since it is related to the heart's pump strength and the elasticity of the arteries.

Vasoconstriction

Narrowing of the diameter of blood vessels.

Collagen Fibers

Strong, flexible fibers found in connective tissue, providing support and elasticity.