JEE Main Physics question
A 10 H.P. motor pumps underground water to fill a tank of volume 22380 litres at a height of 10 m from the ground. If it took 5 minutes to fill the tank, calculate the running time of the motor, given g = 10 ms⁻² [EAMCET (Engg.) 2000]
Answer: (A)
Solution
Mass of water = volume × density = 22380 × 10⁻³ m³ × 10³ kg/m³ = 22380 kg. Power = 10 H.P.
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