- #1
eshia5857
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Homework Statement
An airplane, whose air speed is 580 km/h, is supposed to fly in a straight path 38 degrees N of E. But a steady 72 km/h wind is blowing from the North. In what direction should the plane head?
Relevant Equations
Pythagorean theorem
Law of sines
Attempt at a solution
The first thing I did was to draw myself a diagram so that I could see what is happening in this problem. I tried to attach a diagram that I made myself, but that did not work out at all.
What I did was to label each one Velocity of the plane with respect to the ground was pointing in the N of E direction and was approximated to 38 degrees, Velocity of the air with respect to the ground was place so that it was head to tail of the previous vector and pointed in the southward direction and the last one was labeled velocity of the plane with respect to the air and it was placed facing in the Eastern direction located directly onto the x-axis. Once I resolve it into components I am getting Y: [tex]V_{pg}[/tex]*sin([tex]\theta[/tex])-[tex]V_{ag}[/tex]*sin([tex]\theta[/tex]), for the x component I found [tex]V_{pg}[/tex]*cos([tex]\theta[/tex]).I plugged my numbers into the equations and found my y components to have a value of 312.76 km/h and my x components to have a value of 457.05 km/h. I took the arcsin(y/x) and found the direction to be 43.2 degrees this troubles me because the solution is supposed to be 43.6 degrees. I need to know how to fix this error so that I don't make mistakes like this in the future I would appreciate any assistance that can be offered. Thank you for your time.