of the following ways, which one is the best way to increase the power output?

A. Increase the amount of work done in a given time or do a given amount of work in less time.
B. Increase the amount of work done in a given time or do a given amount of work in more time.
C. Decrease the amount of work done in a given time and do a given amount of work in less time.
D.Decrease the amount of work done in a given time and do a given amount of work in more time.
E. None of these options.
I choose a. Is that correct

Yes, A

Power = work / time
to increase power increase work, decrease time

Can you help me with this question.

When going up stairs, by which method would you do more work?
A. Running
B. Walking
C. Crawling
D. All of the above options
E. There is not enough information to compare these situations

the work done is m g h, the same for all of them

If you go faster your power goes up but your time goes down, same old m g h

So it's d

I guess, I does not give you explicitly the option of "They are all the same".

When going up the stairs, by which method would you expend more power.

A. Running
B. Walking
C. Crawling
D. All of the above options produce the same power output.
E. There is not enough information to compare these situations

same energy

power = energy / time
shortest time wins

ah come on, you knew that !

So all of them have the same power output.

NO !!!!

same ENERGY
Power = energy/time
short time -----> big power
(mow lawn faster with more horsepower :)