Calculate A1 and A2 for the following set of conditions: An aluminum casting weighing 40Kg is to be cast in 67 seconds. Assume the yield on the casting is 60% to determine the gating system weight. Assume an initial fill rate of 1.5times and a frictional drag effect of 1.3 in the system. Aluminum density is 2500Kg/m3 {V=(2gh)1/2; Q=VxA; H1=45mm; H2=195mm}