A 100-Kg Box Is Placed on a Ramp $\degree$ What Is the Coefficient of Static Friction Between Box

question 6

Multiple Choice

A 100-kg box is placed on a ramp. As one end of the ramp is raised, the box begins to move downward just as the angle of inclination reaches 25 $\degree$ . What is the coefficient of static friction between box and ramp?

• A) 0.15
• B) 0.27
• C) 0.47
• D) 0.95

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