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Physics 11 Online
OpenStudy (anonymous):

Work and power are different because

OpenStudy (anonymous):

look at the definition of Power. power = rate at which work is done = total work done / total time taken.

OpenStudy (anonymous):

work is force*distance whearas as power is \[power= work/time \]

OpenStudy (anonymous):

the Power is the speed on that realize work!!!

OpenStudy (anonymous):

Supposea constant force applied on an object. Work is a scalar product of two quantities, force and displacement. You can see that by definition, time is not present. However, as Mayken or Vaidehi09 said, the time is present when you define power. you can do a work in 1 s or 5 s. As faster, more power. So the average power is defined as AhsanAJ97 said, power=work/time. However when you need instantaneous power, we can proof that: power=force . velocity, (the dot . means scalar product, in vectorial notation).

OpenStudy (shane_b):

Work and power are different because power is simply the rate at which work is done with respect to time. \[W=Force \space x \space Distance\]\[Power=\frac{Work}{Time}\]

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