Question

30.Water flowing from a hose pipe fills a 15litre container in one minute.The speed of water from the free opening of radius 1cm is (in m/sec)

Answer 1

Answer:

0.7961m/s

Explanation:

let, the speed of water = V m/s

given , radius of pipe = 1cm = 0.01m

Now,

A/Q,

(Area of opening of pipe)xV = 15L/1min

3.14x(0.01m)²xV = 0.015m³/60s

3.14x0.0001m²xV = 0.00025m³/s

0.000314xV = 0.00025m/s

V = 0.7961m/s.