
Grade 11General Physics
The U-tube acts as a water siphon. The bend in the tube is 1 m above the water
surface. The tube outlet is 7 m below the water surface. The water issues from the
bottom of the siphon as a free jet at atmospheric pressure. Determine the speed of the
free jet and the minimum absolute pressure of the water in the bend. Given
atmospheric pressure = 1.01 × 105 N/m2, g = 9.8 m/s 2 .
The U-tube acts as a water siphon. The bend in the tube is 1 m above the water
surface. The tube outlet is 7 m below the water surface. The water issues from the
bottom of the siphon as a free jet at atmospheric pressure. Determine the speed of the
free jet and the minimum absolute pressure of the water in the bend. Given
atmospheric pressure = 1.01 × 105 N/m2, g = 9.8 m/s 2 .
surface. The tube outlet is 7 m below the water surface. The water issues from the
bottom of the siphon as a free jet at atmospheric pressure. Determine the speed of the
free jet and the minimum absolute pressure of the water in the bend. Given
atmospheric pressure = 1.01 × 105 N/m2, g = 9.8 m/s 2 .





