5 ms·
Don't we always consider gravity as "acceleration"? In f = m * a, for objects falling from sky, it will be f = m * g where g is gravity, m is mass & f is force
by the_arun 6y ago
Don't we always consider gravity as "acceleration"?
In f = m * a, for objects falling from sky, it will be f = m * g where g is gravity, m is mass & f is force
Sorry, I think I am missing the point of the article.
- derex 6y agog is not gravity, it’s a constant that quantifies the force that gravity impresses on a mass in Newtonian mechanics
- the_arun 6y agohttps://en.wikipedia.org/wiki/Gravitational_acceleration https://en.wikipedia.org/wiki/Gravitational_acceleration Isn't "G" (uppercase G) is gravitational constant and Lower case "g" is acceleration?
- nsonha 6y agoyes but they have nothing to do with your assessment "gravity is acceleration". "Forces cause acceleration" is more accurate, there are 4 kinds of forces so gravity is just one cause.
- nsonha 6y agoin Newtonian physics only a force can cause acceleration
- the_arun 6y agoSomething I learnt in 8th grade - if an object is free falling from sky of mass "m" the force it applies when it hits on the ground is m * g, where g is the gravitation.
- nsonha 6y agoI think you are mashing up different lessons: - when you stand on the ground you are the subject of 2 forces: gravitational force m * g and the opposite reaction force of the ground surface, they cancel each other so you stand still - when you free fall your acceleration is g and the gravitational force is m * g, this is according to Newton's 2nd law when you hit the ground depending on your velocity and... deformation, the force of impact will be different because you will de-accelerate to 0 or even bounce back very quickly much faster than g. It's gonna be much stronger than g * m