Is the table-cloth trick driven more by inertia or friction?

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SUMMARY

The table-cloth trick's success is primarily attributed to the interplay of inertia and friction. The key factor is the ability to exert a force greater than the static friction opposing the motion of the objects on the table-cloth. By pulling the table-cloth quickly, the dynamic friction does not have sufficient time to significantly accelerate the objects, resulting in minimal momentum transfer. This technique effectively minimizes the speed of the objects as they remain largely unaffected during the rapid removal of the cloth.

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Bashyboy
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Hi,

Is the success of the table-cloth trick ascribed to inertia, or the fact that the person pulling on the table-cloth is able to pull with a greater force than the static friction trying to oppose relative motion of the objects on the table-cloth and the table cloth itself?
 
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Have you considered that it could be both?
 
Inertia is certainly necessary, but the real trick is to pull so hard that the tablecloth will be removed in a very short time that the dynamic friction doesn't have time to accelerate the objects much. The amount of momentum the objects get is (friction force) * (time), so by making the time as short as possible, the momentum, and thus the speed of the objects will be made as small as possible.
 

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