Question
Asked Sep 11, 2019
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A rope pulls on the lower block in the figure with a tension force of 20 N. The coefficient of kinetic friction between the lower block and the surface is 0.16. The coefficient of kinetic friction between the lower block and the upper block is also 0.16. The pulley has no appreciable mass or friction. What is the acceleration of the 2.0 kg block?

 

1.0 kg
20 N
2.0 kg
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1.0 kg 20 N 2.0 kg

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Expert Answer

Step 1

The below diagram represents the free body diagram of mass 1Kg

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n2 T

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Step 2

The below diagram represents the combined free body diagram of blocks having mass 1Kg and 2Kg.

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T pull Т W2

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Step 3

Write the expression for net force acting on ...

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The net force acting on 1Kg block along horizontal direction -T mg= M,A T mg-ma

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