Question

If a machine is doing 500 J of work with 75 watts of power, how long did it take to complete its task?

Answer 1

It takes 6.67 second to finish the task by the machine.

Step-by-step explanation:

Given that,

Work done by the machine (w) = 500J

Power generated by the machine (P) = 75 watt

The dimension of power is energy divided by time. The "SI unit" of "power" is the "watt" (W), which is equal to "one joule per second" .

`Power=(w o r k)/(t i m e)`

Calculate the time for the given work and power.

`\text { Time }=\frac{\text {work}}{\text { power }}`

`\mathrm{Time}=(500)/(75)`

Time = 6.67 second

6.67 second long did it take to complete its task.