Net Force Question? Find Formula to Calculate Daughter's Experience

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Homework Help Overview

The discussion revolves around a physics problem involving net force experienced by a daughter being held by her mother while a father exerts a pulling force. The subject area includes concepts of forces, weight, and net force calculations.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants explore the definition of net force and how to calculate it, questioning the inclusion of different forces such as the pulling force and gravitational force. There is confusion about whether to add the weights of the mother and daughter and how to interpret the forces acting on the daughter.

Discussion Status

Some participants have offered insights into the forces at play, while others express confusion regarding the calculations and assumptions being made. The discussion includes attempts to clarify the situation and the forces involved, but there is no explicit consensus on the correct interpretation of the net force experienced by the daughter.

Contextual Notes

Participants are navigating the complexities of force vectors and the implications of the forces acting on the daughter, with some expressing uncertainty about the scenario and the calculations involved.

xflasn1p3rx
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Question is:
A mother weighing 58.2kg is holding onto the hand of her daughter who weighs 35.5kg. If the father grabs the hand of the mother and pulls with a force of 100N, how much net force does the daughter experience?

Iv'e been looking through my Physics formula and can't even find anything about net force...
would anyone by chance know a formula I could use?
 
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Net force is the sum of all forces affecting the daughter. The father is pulling horizontally I assume and so the mother pulls the daughter with same force assuming she doesn't stretch out first and then there's gravity exerting a downward force of m*g.

So add the two forces together in a vector fashion to get the answer.
 
The only force is 100N though?
Do I add the weight of both the daughter and mother then do what with the force?
I'm sorry for the trouble and confusion.
 
figured it out.
thanks for your help.
 
xflasn1p3rx said:
figured it out.
thanks for your help.

so what answer did you get?
 
37.9N downward
 
xflasn1p3rx said:
37.9N downward

well think about that for a bit, does that make sense?

If the mom is holding the daughter and the dad yanks on the mom, what's going to happen to the daughter?

If what you say is true, and she experiences a net force of 37.9N downwards, then she's going to accelerate into the ground.

Does that make sense?
 

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