A gate is 0.5 m wide and 0.6 m tall, and is hinged at the bottom. On one side the gate holds back a 0.5-m deep body of water.
On the other side, a 10-cm diameter water jet hits the gate at a height of 0.5 m. What jet speed Vis required to hold the gate verticaP
What will the speed be if the body of water is lowered to 0.25 m'1 .