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Force exertion by liquid in a jar

  • Thread starter Edemardil
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  • #1
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c) With what force must a determined 10e-10 kg bacterium cling to the rim?

Homework Equations


(a) (1rev/2.199m)(50.0m/s)(60s/min) to get w =1364 rev/min

(b) Ca = V^2/r = 50.0^2/r
I got the radius from 0.700*0.5 = 0.350
2500*0.350 = 7142.86

(c) F = m*a

The Attempt at a Solution


[/B]
(c)
I looked it up and found one reply somewhere that said it's just using the F = m*a and I found some other stuff. I tried them all and get no right anwser that WebAssign will input.

So first I did:

7142.86*10e-15 but that was wrong.

I think that the Cf should be the Ca*mass so either I'm wrong or webassign is not taking my anwser.
 
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Answers and Replies

  • #2
jbriggs444
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c) With what force must a determined 10e-10 kg bacterium cling to the rim?
The force with which the bacterium clings to the rim is not the only force acting. Can you think of what other force or forces might be involved?
 

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