Question

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 1

Explanation:

p=mgh/t

=100×10×20/10

=2kw or 2×10³ W

so..I hope you got it!!

and all the best!!!

Answer 2

Given :-

• Height of Water Tank = 20 metres.
• Mass of Water Tank = 100 kg.
• Time taken by the pump = 10 seconds.
• Gravitational Constant = 10m/s²

To 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.