A 150-N Box Is Being Pulled Horizontally in a Wagon

question 42

Multiple Choice

A 150-N box is being pulled horizontally in a wagon accelerating uniformly at 3.00 m/s².The box does not move relative to the wagon,the coefficient of static friction between the box and the wagon's surface is 0.600,and the coefficient of kinetic friction is 0.400.The friction force on this box is closest to

• A)450 N.
• B)90.0 N.
• C)60.0 N.
• D)45.9 N.

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