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.
a. What jet speed V is required to hold the gate vertical?
b. What will the speed be if the body of water is lowered to 0.25 m?
c. What will the speed be if the water level is at the top of the gate?