The total pressure on the top of a closed cylindrical vessel of radius (r) completely filled up with liquid of specific weight (w) and rotating at ( ) rad/s about its vertical axis, is

• A. <img src="/_files/images/mechanical-engineering/hydraulics-and-fluid-mechanics/174-295-1.png">
• B. <img src="/_files/images/mechanical-engineering/hydraulics-and-fluid-mechanics/174-295-2.png">
• C. <img src="/_files/images/mechanical-engineering/hydraulics-and-fluid-mechanics/174-295-3.png">
• D. <img src="/_files/images/mechanical-engineering/hydraulics-and-fluid-mechanics/174-295-4.png">