# Questions tagged [centre-of-gravity]

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### What are the practical applications of Centre of Mass & Centre of Gravity?

I have learnt COM and COG are different things if we have non uniform gravitational field i.e. mass will be same at anywhere but gravity will be different. I want to find practical examples of both ...
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3 answers
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### Are there any instances on Earth where it must be necessary to distinguish between center of mass and center of gravity?

Distinguishing between center-of-mass as the geometric centroid pondered by mass (the average point of the object(s) using mass as the weight of the sum) and the center-of-gravity as the centroid ...
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### How to calculate the force required to tip a floating dock

If I have the following I'd like to determine how wide the base of a floating dock would need to be to prevent tipping under certain weather conditions (wind & waves) I'd like to build a modular ...
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### How can I calculate the width of stand required for a Christmas tree based on its height?

Given the height and / or weight of a cut tree, what is the best way to calculate the width of stand required to keep it upright? I have no engineering background, but have been trying to think of a ...
• 113
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### Centroid and Center of Gravity

I was studying this example but I didn't understand how the author arrived at (A₁ - A₂)G₁G Please I need enlightenment
1 vote
1 answer
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### Calculating how big a base to attach to a chair to prevent it toppling

I have a pair of cinema seats that are designed to be bolted to the floor. I don't want to do this so instead I have made wooden feet and bolted the seat to them and they are quite stable. I know ...
• 281
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### Does lowering the ride height of a car 50 mm exactly lower the height of C.G by 50 mm?

Does lowering the ride height of a car $50\ mm$ exactly lower the height of C.G. by $50\ mm$ or is it higher?