A 50-Kg Box Is Resting on a Horizontal Floor

question 44

Multiple Choice

A 50-kg box is resting on a horizontal floor.A force of 250 N directed at an angle of 30.0° below the horizontal is applied to the box.The coefficient of static friction between the box and the surface is 0.40,and the coefficient of kinetic friction is 0.30.What is the force of friction exerted by the floor on the box?

• A)32 N
• B)200 N
• C)220 N
• D)250 N
• E)620 N

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