Saved Bookmarks
| 1. |
What is the power of pump which takes 10s to lift 100 kg of water to a tank situated at a height of 20m ? |
|
Answer» -Height of Water Tank = 20 metres.Mass of Water Tank = 100 kg. Time TAKEN by the pump = 10 seconds.Gravitational Constant = 10m/s²To Find :-Power of the pump. Solution :-We know that, Power = Work Done ÷ Time.Work Done = m. g. h.Put the values.➛ Work Done = 100 × 10 × 20.➛ Work Done = 1000 × 20.➛ Work Done = 20000 Joules.Now, Substitute the Values in the Power formula.➛ Power = 20000 ÷ 10.➛ Power = 2000 Watt or 2 Kw.Therefore, Power of the pump = 2 Kw. |
|