1. Group 8
Nicolas Hall
Aaron Lowe
Chin Joo Sin

2. Curl of velocity
For Cartesian Coordinates

3. er e er e r1 r2 2 1
Unfortunately, in polar coordinates, the unit vectors change with position.

4. er e er e r1 r2 2 1
Some questions to ask are:
Does er change with r? No
Does e change with r? No
Does er change with ? Yes
Does e change with ? Yes
Note: These will help when we need to simplify later!

5. Curl in polar coordinates

6. 0 because cross it’s a cross product of itself
0 because er doesn’t vary with r
0 because e doesn’t vary with r
0 because cross it’s a cross product of itself

7. Wow, it actually simplifies!
0 because e is crossing itself
Wow, it actually simplifies!