Magnitude of acceleration

  • Thread starter shimizua
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  • #1
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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.
 

Answers and Replies

  • #2
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oh, and i had tried F=ma but that was wrong
 
  • #3
G01
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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.
 
  • #4
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i figured it out, i was using the guys m and that was the problem
 
  • #5
G01
Homework Helper
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OK cool! Good job.
 

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