{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# hw3-sol - Assignment 3 Section 13.1 Problem 4 = 3 4 Problem...

This preview shows pages 1–2. Sign up to view the full content.

Assignment 3 Section 13.1 Problem 4: ?? = 3 ? + 4 ? Problem 22: ? + ? = ? − ? Problem 24: 2 ? + 7 ? 5 ? = 26 ? + 54 ? + 35 ? Section 13.2 Problem 10: 𝜃 = arctan 18 15 Problem 14: ? represents the velocity vector of the airspeed of the plane. Thus, we have ? = 498.20 ? + 42.43 ? This is the direction the plane should head in order to go due east. The velocity vector for the wind is ? = 42.43 ? − 42.43 ? . Thus, the velocity vector of the airplane’s speed relative to the ground is ? + ? = 540.63 ? So the airplane’s ground speed is ? + ? = 540.63 km/hr. Problem 16: Let the ? -axis point east and the ? -axis point north. ? , ? and 𝑒 represents the current, wind, and engine vectors, respectively. Thus, we have ? = 12 cos 25 ? ? + 12 sin 25 ? ? = 10.876 ? + 5.071 ? ? = 7 cos 80 ? ? − 7 sin 80 ? ? = 1.216 ? − 6.894 ? The combined velocity of the boat is due east at a speed of 40 km/hr, so we want

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern