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PRACTICE / Efflux speed

A draining jet also falls

Water exits horizontally from a small tank hole 0.80 m below the water surface and 1.25 m above level ground.

Find the horizontal distance travelled before hitting the ground.

Organize the givens & assumptions
  • head = 0.80 m
  • fall height = 1.25 m

g = 10 m/s²; large open tank, small horizontal hole, no drag or viscous loss; level ground below the hole.

  1. A2.5 m2.5\ \mathrm m
  2. B2 m2\ \mathrm m
  3. C4 m4\ \mathrm m
  4. D1.6 m1.6\ \mathrm m

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