# Mohr's circle

fonseh

## Homework Statement

http://web.mit.edu/course/16/16.unified/www/FALL/materials/documents/HO-M-6(Mohrs)(08).pdf

I found this on the Internet . At there , the author defined positive as counterclockwise rotation .
and also “
Positive shear would cause a clockwise rotation of the infinitesimal element about the element center.

In the notes , the author defined positive shear axis as upwards , if I draw positive shear axis as downwards , will it make the difference ? Is it necessary to define clockwise rotation as positive now ?

## The Attempt at a Solution

IMO , it 's necessary to define clockwise rotation as positive . Correct me if I'm wrong .

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