A pump lifts 500 kg of water per minute to a height of 12 m. What is the minimum power of the pump? (Take g = 10m/s2)
Options
A
1000 W
B
5000 W
C
10,000 W
D
60,000 W
Answer & Analysis
Answer
A
Analysis
To calculate the minimum power of the pump,
we need to find the work done to lift the water and then determine the power
required. Here's how we can do that:
Calculate the work done to lift the water
Work done () is given by:
Where:
is the force required to
lift the water
(mass of the water)
(acceleration due
to gravity)
(height)
First, calculate the force required to lift
the water:
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