Calculating Force Exerted by Fish on Fishing Reel

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SUMMARY

The discussion focuses on calculating the force exerted by a fish on a fishing reel, which has a mass of 0.623 kg and a radius of 1.83 cm. The reel experiences a restraining torque of 0.614 N·m while spinning with an angular acceleration of 49.1 rad/s². Using the equation Torque = I * alpha, where I is the moment of inertia calculated as I = 1/2 * m * r², participants aim to derive the force exerted by the fish on the line. The solution involves applying the relationship between torque, radius, and force.

PREREQUISITES
  • Understanding of rotational dynamics and torque
  • Familiarity with the moment of inertia formula I = 1/2 * m * r²
  • Knowledge of angular acceleration and its implications
  • Ability to apply trigonometric functions in physics equations
NEXT STEPS
  • Study the derivation of torque in rotational motion
  • Learn how to create and interpret free body diagrams
  • Explore the relationship between linear force and torque
  • Investigate practical applications of torque in fishing equipment design
USEFUL FOR

This discussion is beneficial for physics students, mechanical engineers, and anyone interested in the principles of rotational dynamics and their applications in real-world scenarios, such as fishing equipment design.

NRip897
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Homework Statement



A cylindrical fishing reel has a mass of
0.623 kg and a radius of 1.83 cm. A fric-
tion clutch in the reel exerts a restraining
torque of 0.614 N · m if a fish pulls on the line.
The fisherman gets a bite, and the reel be-
gins to spin with an angular acceleration of
49.1 rad/s2.
What force does the fish exert on the line?
Answer in units of N

Homework Equations


Torque=I(alpha)
I=1/2mr^2
(torque)=rfsin(theta)

The Attempt at a Solution


Is it as easy (torque)=rF?
 
Last edited:
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NRip897 said:

The Attempt at a Solution


none
You are required to show something here. A free body diagram would be good, plus any thoughts, a description of what you have tried (with working) or an explanation of why you cannot get started.
 

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