Physics
NULL
Medium
Question
What is the angle that the given vector makes with y-axis and A=2i+3j ?
A
30°
✓ Official correct answer
B
60°
C
90°
D
120°
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
30°
No member explanations yet for this option.
B
60°
No member explanations yet for this option.
C
90°
No member explanations yet for this option.
D
120°
No member explanations yet for this option.
Explanation
For A = 2i + 3j, the angle with the y-axis is θ = arccos(3/√13) ≈ 33.7°, closest to 30° among the given choices.
So the correct answer is 30°.
Related Questions
Q
The waves which are used for line of sight (LOS) communication are called:
Medium
· Physics
Q
A potential difference is applied across the ends of a wire. If the potential di...
Medium
· Physics
Q
Relation between linear velocity and angular velocity:
Medium
· Physics
Q
If the axis of rotation passes through the body and the body moves around itself...
Medium
· Physics