The Jog Falls in Karnataka state are nearly
20 m high. 2000 tonnes of water falls from it in a minute. Calculate the
equivalent power, if all this energy can be utilized. (g = 10 m/s2)
Answers
Answered by
6
Power = Work done per unit time
Work done = Δ Energy
Potential Energy = mgh
Power = mgh/t = μgh. [μ=mass per time]
μ=2000x1000kg/60 sec
μ = 3x10000 (approximately)
Power = 3x10000 x 10 x 20
Power = 6 x 10^6 W
Work done = Δ Energy
Potential Energy = mgh
Power = mgh/t = μgh. [μ=mass per time]
μ=2000x1000kg/60 sec
μ = 3x10000 (approximately)
Power = 3x10000 x 10 x 20
Power = 6 x 10^6 W
Answered by
8
Explanation:
Given:
- Height (H) is 20 m
- Mass (m) is 2000 tonnes
- Gravitational force (g) is 10 ms²
- Time ( T ) is 1 minutes = 60 seconds
To Find:
- What is the power?
Solution: Here mass is given in tonnes so we have to change it into Kg
- 1 tonne = 1000 kg , so
- 2000 tonnes = 2 x 10^6 kg
• Formula for finding Power •
★ Power = Work/Time ★
- Also Work = mgh
Hence, Power = 6.67 x 10^7 W
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