Question

7. Water flows through a cylindrical pipe of internal
diameter 7 cm at 36 km/h. Calculate the time in
minutes, it would take to fill a cylindrical tank,
the radius of whose base is 35 cm and height 1 m.​

Answer 1

Step-by-step explanation:

Of cylindrical pipe,

r=7/2

Height=3600000cm/hr=60000cm/min

$v = \pi {r}^{2} h$

=22/7×7/2×7/2×60000

=2310000

V of cylinder=22/7×35×35×100=385000

Time taken=385000÷2310000=0.16min