Jun 30, 2017 #1 fonseh Messages 521 Reaction score 2 Homework Statement I have problem of obtaining the cross sectional area . Homework EquationsThe Attempt at a Solution Taking section 2-3 as an example , my working is [ (3.3 +4.8) / 2 ]* 5 = 20.25 , but the ans provided is 29.28 , how to get the 29.28 ? Attachments 657.jpg 41.3 KB · Views: 780 658.jpg 45.2 KB · Views: 681
Homework Statement I have problem of obtaining the cross sectional area . Homework EquationsThe Attempt at a Solution Taking section 2-3 as an example , my working is [ (3.3 +4.8) / 2 ]* 5 = 20.25 , but the ans provided is 29.28 , how to get the 29.28 ?
Jun 30, 2017 #2 CWatters Science Advisor Homework Helper Gold Member Messages 10,546 Reaction score 2,324 In section 2-3 the depths are 5 and 7.2 So the average depth is (5+7.2)/2=6.1 The width is 4.8 so the area is 4.8*6.1=29.28
In section 2-3 the depths are 5 and 7.2 So the average depth is (5+7.2)/2=6.1 The width is 4.8 so the area is 4.8*6.1=29.28
