A vacuum cleaner transfers 72 000 J of energy.Calculate the power of the vacuum cleaner when used for 6 minutes.432 000 W12 000 W200 W20012 000
Question
A vacuum cleaner transfers 72 000 J of energy. Calculate the power of the vacuum cleaner when used for 6 minutes.
Options:
- 432 000 W
- 12 000 W
- 200 W
- 200
- 12 000
Solution
To calculate the power of the vacuum cleaner, we need to use the formula for power which is:
Power = Energy / Time
The energy transferred by the vacuum cleaner is given as 72,000 J (Joules).
The time is given as 6 minutes, but power is typically calculated in terms of seconds, so we need to convert the time to seconds. There are 60 seconds in a minute, so 6 minutes is 6 * 60 = 360 seconds.
Now we can substitute these values into the formula:
Power = 72,000 J / 360 s = 200 W (Watts)
So, the power of the vacuum cleaner when used for 6 minutes is 200 Watts.
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