Calculating Vector \overline{G} in Spherical Coordinates at Point (3,2,6)

[iflabs]

I can't muster my mind around this.

A vector is given in spherical coordinate system: \overline{G}=\frac{4}{R}\hat{R}

Find \overline{G} at point (3,2,6) and the magnitude of the y component at the point.

Can you actually plot this vector on a graph at the point? The vector only specifies a length with no direction.

 

[berkeman]

I can't muster my mind around this.



Can you actually plot this vector on a graph at the point? The vector only specifies a length with no direction.

But you do have a direction. From the origin to the point given...

 

[HallsofIvy]

In any coordinate system, the vector corresponding to a single point is the vector from the origin to the point, as berkeman said.