Forum Discussion
DirtyOil
Aug 18, 2014Explorer
here's some fun... wanna determine your own Hp?
1. weigh your self - need to convert to kgs, so weight in pounds times 0.454 = kgs (example 120lbs 125 x 0.454 = 56.75kg).
2. measure a flight of stairs bottom of stairway to the top. Need to convert feet to meters, ft x 0.3048 = meters (example 12ft 12 x 0.3048 = 3.658m)
3. You'll need a stop watch, with a running start, run up the stairs (starting the stop watch as your foot hits the first step, then stop the watch as both feet contact the floor at the top of the stairs). This will be your "time".
W = m x 9.81 x h divided by t
W = wattage
m = mass(your weight in kg)
9.81 = gravitational constant
h = height of stairs in meters
t = time ( how long it took you to race up those stairs)
example:
W = m(165lbs x 0.454= 74.91kgs) x 9.81 x h(12ft x 0.3048= 3.658m) divided by time ( I dunno say .35 seconds.. some may be slower or faster then others)
so: W=74.91 x 9.841 x 3.658 divided by 0.35
W = 7704.68
Now to convert wattage(power) to HP use HP = W divided by 746
HP = 7704.68/746
your HP is 10.328...
1. weigh your self - need to convert to kgs, so weight in pounds times 0.454 = kgs (example 120lbs 125 x 0.454 = 56.75kg).
2. measure a flight of stairs bottom of stairway to the top. Need to convert feet to meters, ft x 0.3048 = meters (example 12ft 12 x 0.3048 = 3.658m)
3. You'll need a stop watch, with a running start, run up the stairs (starting the stop watch as your foot hits the first step, then stop the watch as both feet contact the floor at the top of the stairs). This will be your "time".
W = m x 9.81 x h divided by t
W = wattage
m = mass(your weight in kg)
9.81 = gravitational constant
h = height of stairs in meters
t = time ( how long it took you to race up those stairs)
example:
W = m(165lbs x 0.454= 74.91kgs) x 9.81 x h(12ft x 0.3048= 3.658m) divided by time ( I dunno say .35 seconds.. some may be slower or faster then others)
so: W=74.91 x 9.841 x 3.658 divided by 0.35
W = 7704.68
Now to convert wattage(power) to HP use HP = W divided by 746
HP = 7704.68/746
your HP is 10.328...
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