Scientific question?

[F111]

Er... No.

That is wrong on so many levels.

That's just a basic formula that's why I posted the link where there is mush more science involved

[V12man]

That's just a basic formula that's why I posted the link where there is mush more science involved

 

Pretty mushy formula...

[Cellar]

You don't need maths for this, you need some common sense.

 

 

 

I wonder if that's how they make aeroplanes stay up as well.

[Robrider]

That's just a basic formula that's why I posted the link where there is mush more science involved

Its a basic formula based on nothing in reality. I'd like to see you do 2440 Watts. and I'd like to see the hill you are climbing if that only gets you up to 20km/h. Power and velocity are not directly proportional so the equation doesn't work out even as a guess.

 

It is a complicated question, but the main variable is the hill gradient (as per your link). 90 inch hit the nail on the head, fitness is also a huge factor that's difficult to quantify after cycling enough to drop 32kg.

[F111]

Its a basic formula based on nothing in reality. I'd like to see you do 2440 Watts. and I'd like to see the hill you are climbing if that only gets you up to 20km/h. Power and velocity are not directly proportional so the equation doesn't work out even as a guess.

 

It is a complicated question, but the main variable is the hill gradient (as per your link). 90 inch hit the nail on the head, fitness is also a huge factor that's difficult to quantify after cycling enough to drop 32kg.

The equation p = mv, is used in physics. It is used to evaluate objects in motion. The 'p' in the equation is equal to momentum and the 'm' represents mass. The 'v' in the equation represents velocity.

[Robrider]

The equation p = mv, is used in physics. It is used to evaluate objects in motion. The 'p' in the equation is equal to momentum and the 'm' represents mass. The 'v' in the equation represents velocity.

 

Oh ok, I understand, I thought you meant power. Still, use of momentum is not relevant.

[The Anteater]

The equation p = mv, is used in physics. It is used to evaluate objects in motion. The 'p' in the equation is equal to momentum and the 'm' represents mass. The 'v' in the equation represents velocity.

In that instance it does make sense, but the uppercase in the original post (P=MV) makes it weird. Power = Molar mass x Volume?

[Maniax]

This video showed it best for me...

 

[Riaanvt]

http://theclimbingcyclist.com/gradients-and-cycling-how-much-harder-are-steeper-climbs/

[Capricorn]

In that instance it does make sense, but the uppercase in the original post (P=MV) makes it weird. Power = Molar mass x Volume?

 

either way, the debate is power, not momentum. The equation used is wrong.

[Riaanvt]

P = krMs + kaAsv2d+ giMs

 

where

• P = power required (in watts)
  
• kr= rolling resistance coefficient
  
• M = mass of bike + rider
  
• s = speed of the bike on the road
  
• ka= wind resistance coefficient
  
• A = the frontal area of the bike and rider
  
• v = speed of the bike through the air (i.e. bike speed + headwind or – tailwind)
  
• d = air density
  
• g = gravitational constant
  
• i = gradient (an approximation²)
  

[The Anteater]

either way, the debate is power, not momentum. The equation used is wrong.

Agreed

[Maniax]

P = krMs + kaAsv2d+ giMs

 

where

• P = power required (in watts)
  
• kr= rolling resistance coefficient
  
• M = mass of bike + rider
  
• s = speed of the bike on the road
  
• ka= wind resistance coefficient
  
• A = the frontal area of the bike and rider
  
• v = speed of the bike through the air (i.e. bike speed + headwind or – tailwind)
  
• d = air density
  
• g = gravitational constant
  
• i = gradient (an approximation²)
  

 

Complicate it much? How the hell is the OP gonna determine that. Simplify it like this,

For every 1kg the OP loses he needs 0.025watts less to maintain the same speed. See easy....????

[Super Sywurm]

Dankie tog dat ek die thread begin lees het toe baie ander mense al klaar die sommetjies gedoen het.

 

Ek was nou rerig nie lus om my wiskunde en skeinat hier uit te pluk nie!!!

[Wayne Potgieter]

aunty i got matric on lower grade with a warning not to come back, i think they passed me just to get rid of me STRUE STORY

At least you have a matric.