Post Utme Nile University 2023 Physics Question 9

Practice objective / multiple choice question 9 from the 2023 Post Utme Nile University Physics examination.

Post Utme Nile University 2023 Physics Objective / Multiple Choice
Question 9 POST_UTME_NILE_UNIVERSITY • 2023 • PHYSICS • objective

A vector $mathbf{A}$ has components $A_x = 2$ and $A_y = 3$. If $mathbf{A}$ is rotated by an angle $\theta$ about the $z$-axis, what is the new $x$-component of $mathbf{A}$?

Answer Options

Correct Answer A. \( A_x' = 2 \cos \theta + 3 \sin \theta \)
B. \( A_x' = 2 \sin \theta + 3 \cos \theta \)
C. \( A_x' = 2 \cos \theta - 3 \sin \theta \)
D. \( A_x' = 2 \sin \theta - 3 \cos \theta \)
Correct Answer
A
Correct Option:
\( A_x' = 2 \cos \theta + 3 \sin \theta \)

About This Question

This is Post Utme Nile University 2023 Physics Question 9. It is one of the objective questions from the 2023 Post Utme Nile University Physics examination.

View More Post Utme Nile University 2023 Physics Questions More Post Utme Nile University Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support