I weigh about 170 pounds and my 5k PR is 17:23. What horsepower engine would this be equivalent to?
I weigh about 170 pounds and my 5k PR is 17:23. What horsepower engine would this be equivalent to?
Well Horsepower is a form of power, which would be simply work over time. So all you have to do is find the work involved in running that 5k, then divide it by the time it took you to run that far (trust me this is an analytical nightmare).
Try this if you really want to find your horsepower. Since work is basically the change in energy simply run as fast as you can up two or three flights of stairs, while timing yourself.
The work involved in this would be the work your body is doing to overcome the gain in potential energy, PE= mgh (Potential energy = mass * gravitational constant * height)
So... find your weight (in Kg would be easier)
g = 9.18 m/s^2
h = the height (in meters) that you ran up.
Then calculate:
Power = Work(PE) / time (seconds to climb stairs)
This power calculation in the units i provided, kg, m/s^2 and m, will lead you with a power in Watts, then just find an online conversion from Watts to HP.
Good luck...
Correction in the second line:
mr physics wrote:
Try this if you really want to find your horsepower. Since work is basically the change in energy simply run as fast as you can up two or three flights of stairs, while timing yourself.
Work is basically the change in energy OVER time
Mr physics...g=9.8 m/s^2
Yes, thank you good catch, apparently i am dislexic (and cant spell)
I had meant for it to read g=9.81 m/s^2 not 9.18