Physics

Problem

![](https://storage.googleapis.com/diraq-contents/question-bank/question-images/b6605cac24d0/2025_11_20_6c008e7ceab86f3b0891g-11.jpg) 54. Three blocks (

m_{1}, m_{2}

, and

m_{3}

) are sliding at a constant velocity across a rough surface as shown in the diagram above. The coefficient of kinetic friction between each block and the surface is

\mu

. What would be the force of

m_{1}

m_{2}

? (A)

\left(m_{2}+m_{3}\right) g \mu

(B)

F-\left(m_{2}-m_{3}\right) g \mu

(C)

F

(D)

m_{1} g \mu-\left(m_{2}+m_{3}\right) g \mu

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