How fast will the 5.0 go?
10-14-2010, 08:33 PM
#81
S197 Section Modder-ator
Join Date: Sep 2007
Location: Orlando FL
Posts: 13,373
Someone needs to sig this, lol.
I wonder if pulling a trailer would make my car faster
I'm curiouser as well...
10-15-2010, 10:15 AM
#83
3rd Gear Member
Join Date: Feb 2010
Location: Norfolk, VA
Posts: 627
A 412hp engine, given zero drag and air resistance, is more than capable of pulling a 3600lb car to 250+mph. Thus, this isn't really about physics, it's about aerodynamics.
Take a brick made of clay, and a brick made of balsa wood. Same size, shape. Accelerate both to 150mph. Then, remove the source of acceleration. Given that air resistance is the only force acting on the bricks (vice gravity, friction with ground, etc.), which do you think will slow down faster?
The balsa wood brick will, as it is of lower density. Density of an object is what determines its terminal velocity and its ability to act against air resistance. Air presents a known force acting against movement of an object, as defined by the density of the air, the frontal area of the object, and the object's coefficient of drag. As it is a force, like any other, it will have less effect on an object of greater opposing mass, given that the three constants I listed remain the same (air density, frontal area, .Cd).
Thus, it is entirely plausible that adding weight to a mustang without changing its external shape or area facing the wind will increase its terminal velocity through air at a given altitude. As he goes higher in altitude, said top speed will increase, to the point that the engine starts getting starved for oxygen.
10-15-2010, 11:35 AM
#84
Join Date: Oct 2010
Posts: 5
Thus, it is entirely plausible that adding weight to a mustang without changing its external shape or area facing the wind will increase its terminal velocity through air at a given altitude. As he goes higher in altitude, said top speed will increase, to the point that the engine starts getting starved for oxygen.
10-16-2010, 07:49 PM
#86
2nd Gear Member
Join Date: Jul 2010
Location: Some army base, Alberta canada
Posts: 196
I had to LMFAO!!! Who is the half wit that thinks ADDING weight to your car makes it faster??? Guess all those pro drag racers, pro GP racers, pro ANYTHIN racers have it all wrong lol... and why would you take your SON to near 170 MPH? You must not like him much...
10-17-2010, 12:36 AM
#87
Pulling a trailer changes the aerodynamics of your car.
A 412hp engine, given zero drag and air resistance, is more than capable of pulling a 3600lb car to 250+mph. Thus, this isn't really about physics, it's about aerodynamics.
Take a brick made of clay, and a brick made of balsa wood. Same size, shape. Accelerate both to 150mph. Then, remove the source of acceleration. Given that air resistance is the only force acting on the bricks (vice gravity, friction with ground, etc.), which do you think will slow down faster?
The balsa wood brick will, as it is of lower density. Density of an object is what determines its terminal velocity and its ability to act against air resistance. Air presents a known force acting against movement of an object, as defined by the density of the air, the frontal area of the object, and the object's coefficient of drag. As it is a force, like any other, it will have less effect on an object of greater opposing mass, given that the three constants I listed remain the same (air density, frontal area, .Cd).
Thus, it is entirely plausible that adding weight to a mustang without changing its external shape or area facing the wind will increase its terminal velocity through air at a given altitude. As he goes higher in altitude, said top speed will increase, to the point that the engine starts getting starved for oxygen.
A 412hp engine, given zero drag and air resistance, is more than capable of pulling a 3600lb car to 250+mph. Thus, this isn't really about physics, it's about aerodynamics.
Take a brick made of clay, and a brick made of balsa wood. Same size, shape. Accelerate both to 150mph. Then, remove the source of acceleration. Given that air resistance is the only force acting on the bricks (vice gravity, friction with ground, etc.), which do you think will slow down faster?
The balsa wood brick will, as it is of lower density. Density of an object is what determines its terminal velocity and its ability to act against air resistance. Air presents a known force acting against movement of an object, as defined by the density of the air, the frontal area of the object, and the object's coefficient of drag. As it is a force, like any other, it will have less effect on an object of greater opposing mass, given that the three constants I listed remain the same (air density, frontal area, .Cd).
Thus, it is entirely plausible that adding weight to a mustang without changing its external shape or area facing the wind will increase its terminal velocity through air at a given altitude. As he goes higher in altitude, said top speed will increase, to the point that the engine starts getting starved for oxygen.
However, when it comes to top speed (terminal speed due to air resistance in this case), the extra weight has no bearing at all, because to hit top speed, and maintain it, you will have to keep the source of acceleration, i.e. the engine, running and at WOT.
You are right that weight WILL have an effect on aerodynamic forces once the source of acceleration is removed. The heavier object will take longer to slow down than the lighter one.
But both the light object and the heavy object will hit the exact same top speed. The heavier one will just take longer to accelerate to that top speed.
10-17-2010, 12:39 AM
#88
Also, without his son, he will accelerate faster to that top speed than if he had his son with him.
10-17-2010, 03:50 PM
#89
2nd Gear Member
Join Date: Aug 2009
Location: VA/NC Line
Posts: 405
Pulling a trailer changes the aerodynamics of your car.
A 412hp engine, given zero drag and air resistance, is more than capable of pulling a 3600lb car to 250+mph. Thus, this isn't really about physics, it's about aerodynamics.
Take a brick made of clay, and a brick made of balsa wood. Same size, shape. Accelerate both to 150mph. Then, remove the source of acceleration. Given that air resistance is the only force acting on the bricks (vice gravity, friction with ground, etc.), which do you think will slow down faster?
The balsa wood brick will, as it is of lower density. Density of an object is what determines its terminal velocity and its ability to act against air resistance. Air presents a known force acting against movement of an object, as defined by the density of the air, the frontal area of the object, and the object's coefficient of drag. As it is a force, like any other, it will have less effect on an object of greater opposing mass, given that the three constants I listed remain the same (air density, frontal area, .Cd).
Thus, it is entirely plausible that adding weight to a mustang without changing its external shape or area facing the wind will increase its terminal velocity through air at a given altitude. As he goes higher in altitude, said top speed will increase, to the point that the engine starts getting starved for oxygen.
A 412hp engine, given zero drag and air resistance, is more than capable of pulling a 3600lb car to 250+mph. Thus, this isn't really about physics, it's about aerodynamics.
Take a brick made of clay, and a brick made of balsa wood. Same size, shape. Accelerate both to 150mph. Then, remove the source of acceleration. Given that air resistance is the only force acting on the bricks (vice gravity, friction with ground, etc.), which do you think will slow down faster?
The balsa wood brick will, as it is of lower density. Density of an object is what determines its terminal velocity and its ability to act against air resistance. Air presents a known force acting against movement of an object, as defined by the density of the air, the frontal area of the object, and the object's coefficient of drag. As it is a force, like any other, it will have less effect on an object of greater opposing mass, given that the three constants I listed remain the same (air density, frontal area, .Cd).
Thus, it is entirely plausible that adding weight to a mustang without changing its external shape or area facing the wind will increase its terminal velocity through air at a given altitude. As he goes higher in altitude, said top speed will increase, to the point that the engine starts getting starved for oxygen.
10-17-2010, 03:52 PM
#90
5th Gear Member
Join Date: May 2005
Location: Tampa
Posts: 4,204
I had a big long response put together to tear him apart... But was in a good mood so I deleted it... haha