Question

A tank is filled with water to a height H. A hole is punched in one of the walls at a depth h below the water surface. Then the distance x from the foot of the wall at which the stream strikes the floor is –

• A. (a) $2 \sqrt { \mathrm { Hh } }$
• A. (b)
• A. (c) 2
• A. (d) 2h

Answer 1

(c)

Using Bernoulli's equation, hrg = 1/2rv²

v = $\sqrt { 2 \mathrm { gh } }$= horizontal speed of water jet from the hole.

Time of fall = , x = vt