A fluid rotates with an angular velocity w about the z-axis. The direction of rotation is related to the z-axis by the rigrt hand screw rule.(adsbygoogle = window.adsbygoogle || []).push({});

a) Find the velocity v of a point in the fluid, and show that

curl v = 2w_k

b) If now w is a function of the radius r, show that curl v = zero if w= constant/r square

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Curl v = 2w_k, help me

**Physics Forums | Science Articles, Homework Help, Discussion**