What would affect horsepower more: speed or mass?

In summary, the conversation discusses the relationship between horsepower and speed, and how horsepower is calculated using the formula P = F.v. It is mentioned that F can be a function of v, such as in fluid drag, and in cases of gravity F depends on mass. Ultimately, horsepower is an important factor in determining the power and speed of a vehicle or machine.
  • #1
Min
1
0
I was wondering which would cause the horsepower to increase and why would it be that one.
 
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  • #2
Min said:
I was wondering which would cause the horsepower to increase and why would it be that one.
Huh? Speed is something you GET from horsepower. Mass is something that horsepower has to overcome to get speed.

What are you asking?
 
  • #3
Hello min,
Horsepower is just another way of saying much power
1 Horsepower = 756 Watt
And in mechanics P = F.v so independant from mass
 
  • #4
Noctisdark said:
Hello min,
Horsepower is just another way of saying much power
1 Horsepower = 756 Watt
And in mechanics P = F.v so independant from mass

Actually, 1 HP = 746 watts

And there are several different ways to calculate horsepower requirements. P = F × v is one of those ways, but what if F is itself a function of v ?

For example, in fluid drag, F is proportional to v2.
 
  • #5
Oops sorry ididn't notice that careless mistake,
@SteamKing, P = F.v regarless of whatever F is, (ie function of anything) but that a great thing to point at
Is meant to write it that way to show that it is prop to the velocity, however in cases of gravity F depends on mass and in most other cases don't but it will always depends on the velocity.
 

1. How does speed affect horsepower?

Speed has a direct impact on horsepower. As speed increases, so does the amount of horsepower needed to maintain that speed. This is because horsepower is a measure of an engine's ability to do work over time, and as speed increases, the engine needs to work harder to overcome air resistance and maintain the vehicle's speed.

2. Does the mass of a vehicle affect horsepower?

Yes, the mass of a vehicle does affect horsepower. In simple terms, the heavier the vehicle, the more horsepower is needed to move it. This is because the engine needs to work harder to overcome the force of gravity and accelerate the vehicle from a stationary position.

3. Which has a greater impact on horsepower: speed or mass?

Both speed and mass have a significant impact on horsepower, but it ultimately depends on the specific situation. For example, if a vehicle is already moving at a high speed, then increasing its mass will have a greater impact on horsepower. On the other hand, if a vehicle is already carrying a heavy load, then increasing its speed will require more horsepower.

4. Can increasing speed and mass both affect horsepower?

Yes, increasing both speed and mass will result in a greater need for horsepower. This is because both factors contribute to the overall work that the engine needs to do to maintain the vehicle's motion. In general, the more work that needs to be done, the more horsepower is required.

5. Are there any other factors that can affect horsepower?

There are several other factors that can affect horsepower, including engine size, air resistance, and mechanical efficiency. Additionally, external conditions such as temperature and altitude can also impact horsepower. It is important to consider all these factors when trying to determine the effect of speed and mass on horsepower.

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