Suppose you purchase a 4 x 8 piece of plywood from Home Depot. You don't have a pickup truck (nor does your friend), but you do have a roof rack with cross bars on your car. So you will have to secure the plywood to the roof rack in order to get it home. Your friend (the one who does not have a pickup truck) suggests that you tie the plywood on sideways (so that the short edge is front to back) and drive at about 13 mph. Use standard sea-level conditions = 0:0023769 slugs/ft3 and = 3:7372 107 slugs/ft*s.(a) Estimate the drag on the plywood for the case suggested by your friend.(b) Estimate the drag on the plywood if you turn the sheet so that the long edge is front to back.(c) Explain why your friend suggested the sideways configuration Suppose you purchase a 4x8 piece of plywood from Home Depot. You don't have a pickup truck (nor doesyour friend), but you do have a roof rack with cross bars on your car. So you will have to secure the plywoodto the roof rack in order to get it home. Your friend (the one who does not have a pickup truck) suggeststhat you tie the plywood on sideways (so that the short edge is front to back) and drive at about 13 mph.Use standard sea-level conditions p=0.0023769 slugs/ft³ and = 3.7372 x 10-7 slugs/ft-s.(a) Estimate the drag on the plywood for the case suggested by your friend.(b) Estimate the drag on the plywood if you turn the sheet so that the long edge is front to back.(c) Explain why your friend suggested the sideways configuration.

Given: ρ= 0.002369 slugs/ft3μ= 3.7372 × 10-7 slugs/ft.s

Answered: Suppose you purchase a 4 x 8 piece of…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Suppose you purchase a 4 x 8 piece of plywood from Home Depot. You don't have a pickup truck (nor does your friend), but you do have a roof rack with cross bars on your car. So you will have to secure the plywood to the roof rack in order to get it home. Your friend (the one who does not have a pickup truck) suggests that you tie the plywood on sideways (so that the short edge is front to back) and drive at about 13 mph. Use standard sea-level conditions = 0:0023769 slugs/ft3 and = 3:7372 107 slugs/ft*s.
(a) Estimate the drag on the plywood for the case suggested by your friend.
(b) Estimate the drag on the plywood if you turn the sheet so that the long edge is front to back.
(c) Explain why your friend suggested the sideways configuration

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