### Discussion :: Center of Gravity and Centroid - General Questions (Q.No.2)

Khalid Anwar said: (Dec 23, 2013) | |

What is the use of centroid? |

Dasari Krishnarao said: (Dec 27, 2013) | |

What is the centroid for human body? |

Addisu said: (Feb 8, 2014) | |

The use of centroid is. It tells you at what point the given object is in equilibrium (balance). |

Jaylord Proxy said: (Mar 7, 2014) | |

I need to find the centroid of the human body for both a standing and seated position as part of design that I am putting together for an adaptive wheelchair design for a handicapped individual. If anybody can please explain to me how to go about finding the overall centroid of a seated and standing human being I would greatly appreciate it. FROM Michael~S: I am assuming that you just make an assumption that the limbs and torso can be approximated as rectangular sections, with the head approximated as a circle. If someone can give me a quick calculation or run-through of how this would be done, I would greatly appreciate it. Thanks for your assistance. |

Dharmalingam Ramasamy said: (Jul 11, 2016) | |

a1 = pixr^2 = pix25^2 = 1963.5; a2 = 110 * 25 = 2750; a3 = pixr^2 = pix12.5^2 = 491; y1 = 25; y2 = 105; y3 = 172.5. = (a1y1 + a2y2 + a3y3) / (a1 + a2 + a3) = 85mm. |

Jaspreet Singh Nagpal said: (Sep 22, 2016) | |

My Answer does not match with the given options. The correct answer is 81.19 please do check the calculations once again. |

Abhishek Sharma said: (Sep 27, 2016) | |

The Correct answer is 81.18647324... |

Prashant said: (Oct 3, 2016) | |

I think 81.2 mm is the correct answer. |

Mithun Raju N said: (Jan 9, 2017) | |

However the nearest available option is 85.9 for 81.18. So we need select the option C. |

Ajit Kumar said: (Feb 3, 2018) | |

81.20 is the correct answer. |

Thompson Victor said: (Apr 10, 2018) | |

Please tell, how did you get y3? |

Shashi said: (Nov 13, 2018) | |

@Thompson Victor. y3 is measured from base to half of the top circle. i.e dia 25 mm so half means 12.5mm therefore from base 172.5= 50+110+12.5. |

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