Air resistance Definition and 416 Threads

hi , As a part of my project, i am modelling air resistance using a differential equation. For the write up, i need to discuss what assumptions i am making. I have the rest of the coursework sorted out. I have a few idea . Air resistance is presumed to be consistent. ( i.e no...

Hey I am just wondering about something, air Resistance is proportional to the velocity in some cases or velocity squared in others. dV/dt=kv what is a typical constant for k, i know it varies so let's just say a baseball at sea level(im sure you all can guess why I am asking this...

Hi all, If someone threw a ball vertically & we want to calculate the time needed to for the ball to return back to his hand taking into account air resistance, would it be different if we ignore air resistance?? When they derive the known laws for the maximum height, range & time, did...

Hello all, I have a sort of basic physics question for you all. I was wondering where I might look to get some simplified math to calculate the amounf of air resistance on a falling object if I know the shape, mass, and volume of the object. I'm doing a lab experiment where I have to drop...

When a car is travlling at constant speed, we say that the forward force is equal to the frictional force. How is that possible? Shouldnt the car be stationary? Samething with sky divers, when the air resistance balances with their weight, how is it possible that they still move downwards...

In this lab we dropped coffee filters from a given height (3 M) and want to determine their terminal velocity My problem is I don't know how to solve the log thing given. we have terminal velocity, V, in the formula Mg = bV^n which I change to V=(Mg/b)^(1/n) then to...

For projectile motion, how does one take air resistance into consideration? I have constructed a device to launch a projectile and I know how to deal with projectile motion without any air resistance, but I am unsure how I determine the range (the distance the marble/object will go) in the...

When a jet aircraft is flying at high speed doesn't the air impacting on the front of the engines compress the air before it gets into the compressor. And how fast does the combusted fuel leave an engine compared to the speed of airflow at the intake?

How would one go about proving the formula D = 1/2C(rho)A(v^2) I have a suspicion momentum can be used to the show the derivation of this, right ?

the formula: R = (.5)DpAv^2 is used to determine how much air resistance (resistive force) is being placed on the object. R is the Resistive force. D is some dimensionless empirical quantity called the drag coefficient p is the density of air A is the cross-sectional area of the object...

Does anyone know how to solve for problems dealing with air resistance? For example: "The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W = 59500 N. The lift force L generated by the rotating blade makes an angle of...

Im taking AP Physics as well as Calculas but haven't covered the topic of Air Resistance yet. I am trying to figure out what the air resistance would be on a baseball. Could someone help me out? Much thanks

i was thinking... sound fades off over distance... does this happen because of air resistance? i know there are a ton of factors involved in this... but is this one of the more important ones in it? if anyone has any ideas please post them :D

if someone falls out of a airplane that is horizontally traveling at 60m/s and goes into the ocean 3.0 seconds later with no air resistance what would the horizontal distance he travels while falling be. is the formula d=vt and the answer 180 m

Two bodies are falling with negligible air resistance, side by side, above a horizontal plane. If one of the bodies is given an additional horizontal acceleration during its descent, it 1. has the vertical component of its velocity altered 2. strikes the plane at the same time as the...

Hm..well I am taking a Physics B course and we never covered the topic of air resistance.. So I was a little curious, so could anyone please give a brief explanation of the basics..or maybe some formula.. I was just wondering if it was really simple like the boyency force or something or...