A paramecium swimming through a fluid is moving at approximately a constant velo

Question

A paramecium swimming through a fluid is moving at approximately a constant velocity as a result of wiggling its cilia. 1. What can you say about the magnitude of the net force that is being exerted on the paramecium while it is doing this? It is equal to zero

2. What can you say about the magnitude of the normal force that the paramecium's cilia exert on the water (Nc?w) compared to the magnitude of the normal force that the water exerts back on the cilia (Nw?c)?

3.What can you say about the magnitude of the normal force that the paramecium's cilia exert on the water (Nc?w) compared to the magnitude of the viscous force that the water exerts on the cilia (Fvw?c)? Nc?w is equal to Fvw?c

I already guessed the answers to 1 and 3 because they were multiple choice.

PLEASE ANSWER QUESTION NUMBER TWO AND GIVE A DETAILED EXPLANATION ON HOW YOU KNOW THE ANSWERS TO ALL 3 QUESTIONS.

Explanation / Answer

1) since a = 0

Fnet = m a = m*0 = 0

2) from netwons 3 law

Ncw = N wc, the force of the water on the cilia = force of cilia on water

3)

since net force = 0

Ncw - Fwc = 0

so Ncw = Fwc

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.