What happens to forces in biomechanics when an object is starting to tip?

AI Thread Summary
When an object begins to tip, the analysis of forces and torques becomes crucial. The discussion emphasizes the need to apply torque equations to understand the forces acting on the object, particularly focusing on the direction and points of action. If tipping occurs, the forces along the y-axis may become unbalanced, leading to a nonzero net vertical force. The normal force from the ground is a key factor in this scenario, as it influences the tipping dynamics. Understanding these concepts is essential for solving related biomechanics problems effectively.
snav96
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Homework Statement



http://tinypic.com/r/sebqc1/8

Homework Equations



can anyone help me with this question? I know i have to use torques to find the answer but i have no idea how to solve it and write equations for it.
thanks

The Attempt at a Solution

 
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snav96 said:

Homework Statement



http://tinypic.com/r/sebqc1/8

Homework Equations



can anyone help me with this question? I know i have to use torques to find the answer but i have no idea how to solve it and write equations for it.
thanks

The Attempt at a Solution

Yes, you need to use torques. What equations have you been taught relating to torques?
If it does start to tip, what will the forces on the object be, in what directions, and acting through what points?
 
haruspex said:
Yes, you need to use torques. What equations have you been taught relating to torques?
If it does start to tip, what will the forces on the object be, in what directions, and acting through what points?

http://tinypic.com/r/161m64l/8
this is my attempt at the question.
if it tips would the forces along the y-axis get unbalanced? N> mg ?
 
snav96 said:
http://tinypic.com/r/161m64l/8
this is my attempt at the question.
if it tips would the forces along the y-axis get unbalanced? N> mg ?
If the y-axis forces are unbalanced, there would be a nonzero net vertical force. What would result from that?
In torque questions you have to pay close attention to the lines of action of forces.
Take it a little further... suppose it is starting to tip. Where is the normal force from the ground?
 

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