Question

a tank of size 10m×10m×10m is full of water and built on the ground.if g=10m/s^2,the potential energy of water in the tank is?​

Answer 1

volume of tank = 10 × 10 × 10

=> 1000m³

we know that:-

mass = density × Volume

=> 10³m³ × 1000kg/m³

=> 10^6kg

now,

P.E = mgh

[ here height = 5m from the mid point of tank]

p.e = 10^6 × 10 × 5

=> 5 × 10^7 joule

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