a girl lifts a 100 N load a height of 2.0 m in a time of 0.5 s. what power does the girl produce?
4ooN per second
400 J/s = 400 Watts
To calculate the power produced by the girl, we need to use the formula:
Power = Work ÷ Time
In this case, the work done by the girl is equal to the force applied multiplied by the distance moved. Therefore, we can calculate the work using the formula:
Work = Force × Distance
Given that the girl lifts a load of 100 N (Force) to a height of 2.0 m (Distance), we can plug these values into the formula to calculate the work done:
Work = 100 N × 2.0 m = 200 J
Now that we have the work (200 J) and the time taken (0.5 s), we can substitute these values into the power formula to determine the power produced by the girl:
Power = 200 J ÷ 0.5 s = 400 Watts
Therefore, the girl produces 400 Watts of power.