Question

A cylinder of height 20m is completely filled with water. The
velocity of efflux of water (in ms⁻¹) through a small hole on
the side wall or the cylinder near its bottom is
(a) 10 m/s (b) 20 m/s (c) 25.5 m/s (d) 5 m/s

Answer 1

Answer   =20m/s

Explanation:

P.E. = K.E.

mgh = 21mv2

v = 2gh=2x10x20(Hereg=10m/s2)

=20m/s