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Easy Maths power question Watch

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    Hi there everyone, I can't believe I'm stumped on such an easy question, please help!

    Q : A pump is used to raise water from ground level to a tank of 5m. The pump is able to pump 5000 litres per hour. Find the power of the pump. ( Mass of 1 litre of water is 1 kg)

    A ; 68.1W

    How do you get to this I'm so confused!
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    (Original post by SmurfyZ)
    Hi there everyone, I can't believe I'm stumped on such an easy question, please help!

    Q : A pump is used to raise water from ground level to a tank of 5m. The pump is able to pump 5000 litres per hour. Find the power of the pump. ( Mass of 1 litre of water is 1 kg)

    A ; 68.1W

    How do you get to this I'm so confused!

    Watt's are Joules per Second.

    So, you're interested in the amount of work done per second.

    5000 l/hr is how many per second?
    Mass is?
    Then weight is?
    Moving through a distance of 5 metres gives .... W.
    • Thread Starter
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    (Original post by ghostwalker)
    Watt's ares Joule per Second.

    So, you're interested in the amount of work done per second.

    5000 l/hr is how many per second?
    Mass is?
    Then weight is?
    Moving through a distance of 5 metres gives .... W.

    Thank you so much! i understand it now. Lol that was so easy its embarrassing
 
 
 
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