the formula:(adsbygoogle = window.adsbygoogle || []).push({});

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 (surface area)

v is velocity

My question is, is the density of air some constant that should be already given to me? also, how would i go about finding the drag coefficient?

I'm asking this because in physics we're doing a lab in wich we drop a cofee filter... and we record its time to reach a certain height (which im guessing is to be able to calulate for the terminal velocity).

So in other words, I have all of these variables except for R, D, and p.

Can anyone help me out?

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# Need help with air resistance

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