Q$6(30\%)$ The blank given in the figure below is to be produ. ad from a $\frac{2}{3}mm$ thick sheet. $(10\%)$ a$)$ Determine the center of pressure for blankin.

$(5\%)$ b$)$ Calculate the required blanking load if : near strength of the strip is $20k\frac{g}{m}{m}^2$

$(15\%)$ If two strips $(35$ and $55$ mm width$)$ are available, which one has to be preferred for the maximum material utilization.