Consider a jet boat as shown below. Suppose the "slipstream" of air is 1 m in diameter (D = 1 m) and the velocity of the air relative to the boat is 80 ft/sec. (assume air density is 0.075 lbm/ft³ and P is 1 atm throughout) a. What is the propulsive force i. When the boat is not moving? ii. When the boat is moving at 10 ft/s? b. What is the initial acceleration if the boat weighs 800 lbm?
Consider a jet boat as shown below. Suppose the "slipstream" of air is 1 m in diameter (D = 1 m) and the velocity of the air relative to the boat is 80 ft/sec. (assume air density is 0.075 lbm/ft³ and P is 1 atm throughout) a. What is the propulsive force i. When the boat is not moving? ii. When the boat is moving at 10 ft/s? b. What is the initial acceleration if the boat weighs 800 lbm?
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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Transcribed Image Text:**Jet Boat Forces and Acceleration Problem**
Consider a jet boat as shown below. Suppose the “slipstream” of air is 1 m in diameter (D = 1 m) and the velocity of the air relative to the boat is 80 ft/sec. (Assume air density is 0.075 lbm/ft³ and P is 1 atm throughout).
### Questions:
a. What is the propulsive force?
- i. When the boat is not moving?
- ii. When the boat is moving at 10 ft/s?
b. What is the initial acceleration if the boat weighs 800 lbm?
### Diagram Explanation:
The diagram depicts a jet boat with a marked airflow (slipstream) exiting the back. The slipstream is labeled with "D" indicating its diameter. The airflow is shown with arrows indicating direction and speed relative to the boat.
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