A 50-Kg Crate Is Resting on a Horizontal Plank

question 70

Multiple Choice

A 5.0-kg crate is resting on a horizontal plank. The coefficient of static friction is 0.50 and the coefficient of kinetic friction is 0.40. After one end of the plank is raised so the plank makes an angle of 25with the horizontal, the force of friction is:

• A) 0
• B) 18 N
• C) 21 N
• D) 22 N
• E) 44 N

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Definitions:

Oxygen Levels

Oxygen levels refer to the concentration of oxygen in the blood, vital for bodily functions and monitored to assess respiratory and circulatory health.

Below-Normal

Referring to values or conditions that are less than the standard or expected level.

Nocturia

Having to void at night.

Urinary System

The organ system responsible for producing, storing, and eliminating urine.