In the formula Side thrust= (( frac{ pi D^2}{4}) )Pmax what is the un – McqOptions

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

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