The nozzle shown rotates with constant angular speed about a fixed horizontal axis through point O.

Question:

The nozzle shown rotates with constant angular speed Ω about a fixed horizontal axis through point O. Because of the change in diameter by a factor of 2, the water speed relative to the nozzle at A is v, while that at B is 4v. The water speeds at both A and B are constant. Determine the velocity and acceleration of a water particle as it passes (a) point A and (b) point B.