b) Calculate The estimated drag force, D, With Uncertainty. Is it enough to keep a 160lb person floating Hint:Error Propagation The drag force on this skydiver can be calculated by the expression for the drag coefficient: CD = D/((1/2)*pU2A) The Drag Coefficient, CD, is estimated at 1.2 ± 0.1 A, is measured by a camera with image processing. The camera is about ±10% accurate. Measurements for A are Given. Measurements for wind speed, U, were found with an anemometer The temperature of air at was measured with a thermocouple with an uncertainty of ±2K. temperature is 300k A (m2) U (m/s)+ 0.651 40.8 0.649 41.0 0.655 40.4 0.654 40.2 0.650 38.9 0.648 39.5 0.645 39.1 0.649 40.6 Anemometer Specs: Measurement Accuracy for air speed: ±(2% + 0.2m/s), ±(2% + 0.8 km/hr), ±(2% 0.4mph), ±(2% + 0.4 knots), ±(2% +40ft/min) Measurement resolution for air speed: 0.1ms, 0.1km/hr, 0.1mph, 0.1 knots, 1.0ft/min
b) Calculate The estimated drag force, D, With Uncertainty. Is it enough to keep a 160lb person floating Hint:Error Propagation The drag force on this skydiver can be calculated by the expression for the drag coefficient: CD = D/((1/2)*pU2A) The Drag Coefficient, CD, is estimated at 1.2 ± 0.1 A, is measured by a camera with image processing. The camera is about ±10% accurate. Measurements for A are Given. Measurements for wind speed, U, were found with an anemometer The temperature of air at was measured with a thermocouple with an uncertainty of ±2K. temperature is 300k A (m2) U (m/s)+ 0.651 40.8 0.649 41.0 0.655 40.4 0.654 40.2 0.650 38.9 0.648 39.5 0.645 39.1 0.649 40.6 Anemometer Specs: Measurement Accuracy for air speed: ±(2% + 0.2m/s), ±(2% + 0.8 km/hr), ±(2% 0.4mph), ±(2% + 0.4 knots), ±(2% +40ft/min) Measurement resolution for air speed: 0.1ms, 0.1km/hr, 0.1mph, 0.1 knots, 1.0ft/min
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
Related questions
Question
b) Calculate The estimated drag force, D, With Uncertainty. Is it enough to keep a 160lb person floating
Hint:Error Propagation
The drag force on this skydiver can be calculated by the expression for the drag coefficient:
CD = D/((1/2)*pU2A)
The Drag Coefficient, CD, is estimated at 1.2 ± 0.1
A, is measured by a camera with image processing. The camera is about ±10% accurate. Measurements for A are Given.
Measurements for wind speed, U, were found with an anemometer
The temperature of air at was measured with a thermocouple with an uncertainty of ±2K. temperature is 300k
| A (m2) | U (m/s)+ |
| 0.651 | 40.8 |
| 0.649 | 41.0 |
| 0.655 | 40.4 |
| 0.654 | 40.2 |
| 0.650 | 38.9 |
| 0.648 | 39.5 |
| 0.645 | 39.1 |
| 0.649 | 40.6 |
Anemometer Specs:
Measurement Accuracy for air speed: ±(2% + 0.2m/s), ±(2% + 0.8 km/hr), ±(2% 0.4mph), ±(2% + 0.4 knots), ±(2% +40ft/min)
Measurement resolution for air speed: 0.1ms, 0.1km/hr, 0.1mph, 0.1 knots, 1.0ft/min
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