Is it impossible to stand without leaning in a straight backed chair?

  • Context: High School 
  • Thread starter Thread starter Himal kharel
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SUMMARY

It is impossible to stand up from a straight-backed chair without leaning due to the position of the center of mass, which is located behind the point of contact between the feet and the floor. The discussion highlights that if friction is sufficiently high to prevent sliding, an individual can generate torque by pushing their feet against the floor while simultaneously pushing their legs against the chair. This interaction allows for a successful transition from sitting to standing.

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Himal kharel
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sit in a straight backed chair and try to stand without leaning. you are not able to do it .
why is it impossibe?
 
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Because your center of mass is well behind the point of conact between your feet and the floor. If the friction was high enough that neither the chair or your feet would slide, then the person could stand up by pushing forward with this feet against the floor and backwards with his legs against the chair to generate a torque.
 

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