A 50-Kg Box Is Being Pushed Along a Horizontal Surface

question 42

Multiple Choice

A 50-kg box is being pushed along a horizontal surface. The coefficient of static friction between the box and the ground is 0.65, and the coefficient of kinetic friction is 0.35. What horizontal force
Must be exerted on the box for it to accelerate at 1.2 m/s²?

• A) 170 N
• B) 120 N
• C) 60 N
• D) 490 N
• E) 230 N

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