The vector has components +5 and +7 along the x and y axes, respectively. Along a set of axes rotated 90 degrees counterclockwise relative to the original axes, the vector's components are
A)−7; −5.
B)7; −5.
C)−7; 5.
D)7; 5.
E)7; 0.

Question

The vector  has components +5 and +7 along the x and y axes, respectively. Along a set of axes rotated 90 degrees counterclockwise relative to the original axes, the vector's components are
A)−7; −5. 
B)7; −5. 
C)−7; 5. 
D)7; 5. 
E)7; 0.

Quizplus · Accepted Answer

The Answer of The vector  has components +5 and +7 along the x and y axes, respectively. Along a set of axes rotated 90 degrees counterclockwise relative to the original axes, the vector's components are
A)−7; −5. 
B)7; −5. 
C)−7; 5. 
D)7; 5. 
E)7; 0.

The Vector Has Components +5 and +7 Along the X