Two Blocks Connected by a String Are Pulled Across a Horizontal

question 59

Multiple Choice

Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of the blocks, as shown. The coefficient of kinetic friction between the blocks and the surface is 0.25. If each block has an acceleration of 2.0 m/s² to the right, what is the magnitude F of the applied force?

• A) 25 N
• B) 18 N
• C) 11 N
• D) 14 N
• E) 7.0 N

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