how much power, in watts, is needed to cut a lawn in 50 min if the work ivolvled is 100,000 j
answered above.
To determine the power required to cut a lawn in 50 minutes with work involved of 100,000 J (joules), we can use the formula:
Power = Work / Time
In this case, the work involved is given as 100,000 J and the time taken is 50 minutes. However, we need to convert the time to seconds as the SI unit for power is watts (W), which is equal to joules per second (J/s).
Converting 50 minutes to seconds:
1 minute = 60 seconds
50 minutes = 50 * 60 = 3000 seconds
Now, we can substitute the values into the formula:
Power = 100,000 J / 3000 s
Performing the calculation:
Power = 33.33 watts (rounded to two decimal places)
Therefore, approximately 33.33 watts of power are needed to cut the lawn in 50 minutes with 100,000 J of work involved.