Question

a pump takes 30 mins to fill 1000 liter tank at highet of 20m from ground. find the power of pump​

Answer 1

Answer:

Vol. of water = 1000 l= 1 m^3

Height of tank = 20 m

Time = 30 min

Mass of water = volume × density = 1 × 1000 = 1000 kg

$\sf \: Power \: = \frac{mgh}{t}$

$\sf \: = \frac{1000 \times 10 \times 20}{30 \times 60}$

$\sf \: = \frac{1000 }{9 }$

= 111.11 j/s or watt