How Does Configuration Affect Frictional Forces on Identical Blocks?

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SUMMARY

The discussion centers on the impact of configuration on frictional forces for identical blocks with equal mass and material. It concludes that the frictional force is the same for configurations B and C, as the only difference is the arrangement of the blocks—one stacked and one side by side. The total frictional force is not affected by the configuration as long as the mass and velocity remain constant. Therefore, the correct answer is that the frictional force is the same in both B and C.

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The blocks shown have equal mass and are made of the same material,and the velocity is the same in each figure. The total frictional force on the blocks are

A. Greater in C than in A or B
B. The same in C and A
C. The same in A,B, C
D. The same in A and B
E. The same in C and B.

Isnt the fictional force the same for all B and C since the only difference between them is that in B the two masses are on top of one another and being pulled be a string, and in C the two masses are beside each other and attached to the same string, which is being pulled?
 

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StephenDoty said:
Isnt the fictional force the same for all B and C since the only difference between them is that in B the two masses are on top of one another and being pulled be a string, and in C the two masses are beside each other and attached to the same string, which is being pulled?
Right.
 

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