What laws of motion are involved in the girl's fall while jogging in the park?

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The discussion revolves around the application of Newton's laws of motion in the context of a girl jogging in the park who collides with a sign and falls. Participants are exploring which of Newton's three laws are relevant to this scenario.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss the involvement of Newton's 1st and 3rd laws, while questioning the relevance of the 2nd law, particularly in relation to the girl's change in velocity upon impact.

Discussion Status

There is an ongoing exploration of the laws of motion, with some participants agreeing on the involvement of the first and third laws, while others are considering the implications of the second law regarding acceleration and velocity changes during the incident.

Contextual Notes

Participants are examining the definitions and implications of Newton's laws in the context of a real-world scenario, questioning assumptions about motion and acceleration without reaching a definitive conclusion.

solars
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One day a girl jogging in the park, doesn't see a sign up ahead, hits it and falls to the ground.

Which of Newton's 3 laws is involved in this story?

I think that Newton's 1st and 3rd law are invovled, not sure about the 2nd.
 
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solars said:
One day a girl jogging in the park, doesn't see a sign up ahead, hits it and falls to the ground.

Which of Newton's 3 laws is involved in this story?

I think that Newton's 1st and 3rd law are invovled, not sure about the 2nd.
I agree that both the first and thrid laws are involved, however for the second, does the girl's velocity change as she hits the sign?
 
Hootenanny said:
I agree that both the first and thrid laws are involved, however for the second, does the girl's velocity change as she hits the sign?

Yes, because she does fall to the ground so her velocity becomes zero?
 
solars said:
Yes, because she does fall to the ground so her velocity becomes zero?
Well yes, but the point I was trying to make is that she undergoes an acceleration and so Newton's 2nd law is also involved.
 

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