Answered


A force of 100. newtons is used to move an object a distance of 15 meters with a power of 25 watts. Find the time it takes to do the work.

Answer :

It takes 60 seconds to do the work

Solution:

Given that,

Force = 100 newtons

Distance = 15 meters

Power = 25 watts

To find: time it takes to do the work

Find the work done:

[tex]work = force \times displacement\\\\work = 100\ newtons \times 15\ meters\\\\work = 1500\ joule[/tex]

Find the time taken

[tex]power = \frac{work}{time}\\\\25\ watts = \frac{1500\ joule}{time}\\\\time = \frac{1500\ joule}{25\ watt}\\\\time = 60\ second[/tex]

Thus it takes 60 seconds to do the work

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