What is the Magnitude of Acceleration in a Frictionless Equation?

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Homework Help Overview

The problem involves a scenario with two individuals on a frozen lake, where one exerts a force on the other. The subject area pertains to dynamics, specifically the application of Newton's second law in a frictionless context.

Discussion Character

  • Exploratory, Mathematical reasoning

Approaches and Questions Raised

  • The original poster expresses confusion regarding the appropriate equation to use for calculating acceleration in a frictionless scenario. There is an attempt to apply F=ma, but initial calculations were based on incorrect mass.

Discussion Status

The discussion has seen some productive exchanges, with participants clarifying the use of the correct mass in calculations. Guidance has been offered to review the work done to identify errors.

Contextual Notes

There is an indication of confusion regarding the application of the force equation and the specific parameters involved, particularly the masses of the individuals in the scenario.

shimizua
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Homework Statement


A 30.3kg girl and a 56.0kg boy are on the surface of a frozen lake, 15.0m apart. Using a rope, the girl exerts a horizontal 4.50N force on the boy, pulling him toward her. Calculate the magnitude of the girl's acceleration.

so for this problem i am just confused about the equation to use. i know that it will use a frictionless equation but that is about all that i am sure of.
 
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oh, and i had tried F=ma but that was wrong
 
OK. So, you tried F=ma. That is the equation you should use. I'll need to see your work to help you find your mistake.
 
i figured it out, i was using the guys m and that was the problem
 
OK cool! Good job.
 

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