In the formula Side thrust=μ\((\frac{\pi D^2}{4})\)Pmax what is the unit of Pmax?

In the formula Side thrust=μ\((\frac{\pi D^2}{4})\)Pmax what is the

1.	In the formula Side thrust=μ\((\frac{\pi D^2}{4})\)Pmax what is the unit of Pmax?
A.	N
B.	N/mm2
C.	N/m
D.	N/mm
Answer» C. N/m