How Strong Does a Fishing Line Need to Be to Stop a Drifting Salmon?

  • Thread starter Thread starter Kawasaki268F
  • Start date Start date
  • Tags Tags
    Line Strenght
AI Thread Summary
To determine the minimum strength of a fishing line needed to stop a drifting salmon weighing 78 N over a distance of 13 cm, constant acceleration equations must be applied. The initial horizontal velocity of the salmon is 3.1 m/s, and the problem involves calculating the necessary deceleration to bring the fish to a stop. Using the equation Vf^2 = V0^2 + 2a(x - x0) along with F = ma, the required force can be derived. The tension in the line must match or exceed this force to effectively stop the salmon. Accurate calculations are essential to ensure the fishing line can withstand the required strength.
Kawasaki268F
Messages
9
Reaction score
0

Homework Statement


The tension at which a fishing line snaps is commonly called the line's “strength.” What minimum strength is needed for a line that is to stop a salmon of weight 78 N in 13 cm if the fish is initially drifting horizontally at 3.1 m/s? Assume a constant deceleration.


Homework Equations


I need to use constant acceleration equations...so: v=V0+at, x-x0=v0t+(1/2)at^2...there are 3 other equations for constant acceleration but I don't think i have learned them yet.

The Attempt at a Solution


I am pretty stuck on this one as I have no idea which equation to use and what to do after that to find the solution
 
Physics news on Phys.org
I got it with the help of a friend using Vf^2=V0^2+2a(x-x0) and F=ma
 

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »
Thread 'Trying to understand the logic behind adding vectors with an angle between them'

Thread 'Trying to understand the logic behind adding vectors with an angle between them'

My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
View full post »

Similar threads

What Is the Minimum Strength of a Fishing Line to Stop a Drifting Salmon?
Replies
3
Views
2K
Newton's Second Law for a Single Force
Replies
2
Views
1K
Calculating Line Strength to Stop a Salmon
Replies
27
Views
9K
Calculating Force Exerted by Fish on Fishing Reel
Replies
1
Views
2K
Linear Motion Formulas for an Inclined Plane
Replies
11
Views
2K
What Force is Needed to Move and Maintain an Ice-Fishing Hut?
Replies
1
Views
3K
How Does Refraction Affect the Visibility of a Fish Inside a Spherical Bowl?
Replies
23
Views
11K
Stopping distance and static friction
Replies
1
Views
4K
What is the Resultant Force of Tensions in Two Fishing Lines?
Replies
1
Views
2K
What constant acceleration do you need to catch up?
Replies
4
Views
4K

Hot Threads

Recent Insights

Back
Top