How Do Rotating Reference Frames Affect Forces on a Merry-Go-Round?

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Homework Help Overview

The discussion revolves around the effects of rotating reference frames on forces experienced by a squirrel on a merry-go-round. The problem involves concepts from rotational dynamics, specifically angular velocity and pseudo-forces such as Coriolis and centrifugal forces.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • The original poster attempts to determine the angular velocity and the effects of pseudo-forces on the squirrel. Participants question the correctness of the equations and the interpretation of variables involved, particularly the velocity of the squirrel in the context of the Coriolis force.

Discussion Status

Some participants have provided feedback on the original poster's attempts, indicating that while some parts are correct, there are misunderstandings regarding the application of equations and the interpretation of directions for the forces. Multiple interpretations of the pseudo-forces are being explored.

Contextual Notes

There appears to be confusion regarding the definitions and calculations of the pseudo-forces, as well as the implications of the negative signs in the equations. The original poster expresses uncertainty about how to begin addressing the problem.

jimmy.dude
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Looking down from a stationary tree branch, a merry-go-round spins in a counterclockwise
direction with an angular velocity of 1 radian per second. a squirrel of mass 0.2 kg sits on the outer rim of the merry-go-round, at a radius of 2.0 meters.

a) what is the magnitude and direction of the vector omega

b) What is the magnitude and direction of the Coriolis pseudo-force as felt by the squirrel?
(possible equation: -2m(omega x v_r)

c)What is the magnitude and direction of the centrifugal pseudo-force as felt by the squirrel?
(possible equation: -m(omegax(omegaxr_r)

I have no idea where to start!
 
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wrong
 
Last edited:
your answer to part a is correct, but for part b,it is not.

For part b, your equation is OK, but what is vr of the squirrel?

For part c, your magnitude is correct, but you need to explain what is meant by the minus sign regarding the direction of the pseudo centrifugal force.
 

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