Question

calculate the power of a pump which can lift 400kg of water to store it in a water tank at a height of 19m in 40s.(g=10)​

Answer 1

Answer:

★ Power = 1900 Watt

Step-by-step explanation:

Given:

• Mass = 400 kg
• Height = 19 m
• Time = 40 seconds
• Acceleration due to gravity = 10 m/s²

To find:

• Power of the pump = ?

Solution:

For solving such questions, apply the below formula when work done is given

Power = (Work done) ÷ Time

Here work done is not given.

So, the formula can also be written as;

Power = (Mass × Gravity × Height) ÷ Time

⇒ Power = (400 × 10 × 19) ÷ 40

⇒ Power = 10 × 10 × 19

⇒ Power = 100 × 19

⇒ Power = 1900 Watts

∴ The power of the pump = 1900 Watts