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MMLU-Pro / 12241 / Determine the drag force acting on a 10 ft × 100 ft smooth flatplate when it is…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Determine the drag force acting on a 10 ft × 100 ft smooth flatplate when it is pulled lengthwise on a still water surface witha velocity of 20 ft/s. Also calculate the drag force on the first10 ft length of the plate. For water \rho = 62.4 lb/ft^3 ;ѵ = 1.08 × 10^-5 ft^2/s.

category

engineering

options

  1. 880lb_f for the whole plate and 124lb_f for the first 10 ft
  2. 680lb_f for the whole plate and 96lb_f for the first 10 ft
  3. 720lb_f for the whole plate and 102lb_f for the first 10 ft
  4. 800lb_f for the whole plate and 112lb_f for the first 10 ft
  5. 780lb_f for the whole plate and 110lb_f for the first 10 ft
  6. 640lb_f for the whole plate and 90lb_f for the first 10 ft
  7. 700lb_f for the whole plate and 100lb_f for the first 10 ft
  8. 820lb_f for the whole plate and 116lb_f for the first 10 ft
  9. 850lb_f for the whole plate and 120lb_f for the first 10 ft
  10. 760lb_f for the whole plate and 106lb_f for the first 10 ft

src

stemez-TransportPhenomena

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Source and history

Official source

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