An Object of Mass 3 Kg Rests on a Horizontal

question 2

Multiple Choice

An object of mass 3 kg rests on a horizontal plane and is pulled along the plane by a force of 15 N at an angle of 30º to the plane. The acceleration due to gravity is 9.8 m/s2. If this force is just sufficient to start motion, the coefficient of static friction is:

• A) 0.09
• B) 0.44
• C) 0.57
• D) 0.59

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Definitions:

Poisson Distribution

A statistical distribution that models the number of times an event occurs within a fixed interval of time or space.

Automated Car Wash

A facility using machinery and automated processes to wash vehicles, often requiring minimal human intervention.