A forklift raises a crate in 5.0 s, giving the crate 5000 J of potential energy.
What is the power of the forklift?
What is the power of the forklift if it does this job in half the time?
watts = Joules per second still :)
5,000/5 = 1 kilowatt
shorter time, more power
2 kilowatts
To calculate power, we need to use the formula:
Power = Energy / Time
1. Power of the forklift:
Given that the forklift raises the crate in 5.0 s, and it gives the crate 5000 J of potential energy, we can substitute these values into the power formula:
Power = 5000 J / 5.0 s = 1000 Watts
Therefore, the power of the forklift is 1000 Watts.
2. Power of the forklift if it does the job in half the time:
If the forklift does the job in half the time, it means the new time is 2.5 s. To calculate the new power, we can use the same formula:
Power = Energy / Time
Power = 5000 J / 2.5 s = 2000 Watts
Therefore, the power of the forklift, if it does the job in half the time, is 2000 Watts.