- #1
Hanababa
- 11
- 0
A mass M is at the top of a rotative arm, with a radius R, at a certain speed V.
Lets take M=60kg, R=5meters and V=10m/s.
We assume the movement generated from some kind of natural source (wind, water..), is permanent and constant, and there is no loss (100% efficiency).
How many watt of electrical power this device can produce ?
I find 3000 Joule of energy generated, but I need an answer in watt, not in Joule. As 1J = 1watt*second, I do not see how to convert it.
The formula I used is
Etot in Joule = 1/2 * M * R² * (V/R)²
What have I missed ?
Lets take M=60kg, R=5meters and V=10m/s.
We assume the movement generated from some kind of natural source (wind, water..), is permanent and constant, and there is no loss (100% efficiency).
How many watt of electrical power this device can produce ?
I find 3000 Joule of energy generated, but I need an answer in watt, not in Joule. As 1J = 1watt*second, I do not see how to convert it.
The formula I used is
Etot in Joule = 1/2 * M * R² * (V/R)²
What have I missed ?