A water tank on the top of a building 25 m high, contains 100 kg of water. Calculate the potential energy stored in the water. [Take acceleration due to gravity 10 ms-2]
Step 1: Given data:
Height of the building is h = 25 m.
Mass of water contained in the tank is m = 100 kg.
Acceleration due to gravity is g = 10 m/s2
Step 2: Formula used:
According to the formula,
P.E. = mass x acceleration due to gravity x height
P.E. = m x g x h
Where P.E. is the potential energy.
Step 3: Calculation:
Finding the potential energy:
Substituting the known values,
P.E. = (100 kg) x (10 m/s2) x (25 m)
P.E. = 25000 J
Hence, the potential energy stored in the water is 25000 J.