Is the Force to Peel Off Tape the Same as the Force to Drag the Surface?

[jangheej]

Hi =)
I have a question about tape peeling.
An adhesive tape is sticked onto a surface.
1) You pull the tape off the surface
2) You drag the surface so that the tape is peeled off.
(see the attachment)

Will these two forces be the same?
so... if I want to measure the force necessary to remove a piece of adhesive tape,
then can I just measure the force necessary to pull the surface?

 

[KingNothing]

No. They would be if you were pulling in exactly the opposite direction, however.

 

[sophiecentaur]

Take this to the limit. Imagine pulling directly upwards on the tape and compare this with pulling the surface horizontally. The two situations would clearly be different. The direction is clearly very relevant.

 

[JaredJames]

Do you have an interest in pulling tape?

Your previous threads on the same topic:
https://www.physicsforums.com/showthread.php?t=459590
https://www.physicsforums.com/showthread.php?t=463679
https://www.physicsforums.com/showthread.php?t=464182

 

[pmacias]

Hello! I can say that the two forces in this scenario are not necessarily the same. Pulling the tape off the surface and dragging the surface to peel the tape off involve different types of forces. When pulling the tape off, the force is mainly applied in a perpendicular direction to the surface, while dragging the surface to peel the tape off involves a combination of perpendicular and parallel forces. Additionally, the force required to remove the tape may also depend on the strength of the adhesive and the properties of the surface. Therefore, measuring the force necessary to pull the surface may not accurately reflect the force required to remove the tape. It would be best to directly measure the force required to remove the tape in order to get an accurate measurement.