(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find work of drag force in term of proportional to Velocity

(Like: Wd=kV^n ,when k=constant value n=Real number)

2. Relevant equations

(Fd=1/2*ρ*v^2*Cd*A)

3. The attempt at a solution

I've a problem with my science project.

I try to find the terminal velocity of a group of tiny aquatic animal.

To find that I use Energy conserve, and to make it more realistic i should put drag force in my calculation.

So, i need to use drag force in term of work (Joule) to be able to mix with energy.

here is my attemption, Fd=1/2*ρ*v^2*Cd*A

Fd*s=1/2*ρ*v^2*Cd*A*s

Wd = k*V^2*s

umm, let me introduce you to my way to find the terminal velocity of a group of tiny aquatic animal in order to know my problem.

Given the group is in rectangle shape

Then i try to seperate it in to many layers to understand the effect of each part thoroughly.

so, i think there is no space between each layer... i don't know s

is there any fault in my logic? and how to solve this?

Thank you for your help :D

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Work of drag force

**Physics Forums | Science Articles, Homework Help, Discussion**