18/90 in simplest form
2 answers:
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Answer: The answer is 30.72
+ 193. 18
+ 53. 46
Step-by-step explanation:
Component of the plane's velocity in the direction of vector relative to the air: ;
Component of the plane's velocity in the direction of vector relative to the air: .
The direction of the plane's velocity relative to the air is normal to vector . Therefore, the component of the plane's velocity (relative to the air) in that direction will equal zero. Thus
.
Refer to the second diagram,
Component of the velocity of the wind in the direction of vector : ;
Component of the velocity of the wind in the direction of vector : .
Assume that the wind blows horizontally. The direction of the wind will be normal to vector . The component of the velocity of the wind in the direction of vector will thus equal zero. Therefore,
.
The ground speed of the plane is the sum of and .
That is:
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