Identify Why the term G-force is used? (1 Viewer)

[serge]

I know how it's used
and what the term means

but why is it used?

 

[Captain Gh3y]

G-forces, also known as acceleration forces, are measured in units of gravitational acceleration.
A force of 2g would be 2 times that of the acceleration due to gravity.

 

[darkwarrior2]

correct me if im wrong but im guessing its easier to calculate a value for the apparent weight if its a multiple of 9.8. 2g = 2x9.8.

 

[rama_v]

I know how it's used
and what the term means

but why is it used?

I guess because u need to measure it do determine whether or not the astronoauts can handle it. Otheriwise, you measure it to ensure that the spacecraft won't be broken apart by the stress caused by the g-forces

 

[jake2.0]

I guess because u need to measure it do determine whether or not the astronoauts can handle it. Otheriwise, you measure it to ensure that the spacecraft won't be broken apart by the stress caused by the g-forces

why can't you just say that 'X' number of newtons of stress is placed

 

[rama_v]

why can't you just say that 'X' number of newtons of stress is placed

you could, but not many ppl know what 500 N feels like. Tell em what 4 g's feels like and they have a better idea

 

[mitsui]

regard to the main Q

g-term is a vector quantity measuring the g-force in a gravitation field. BUT becoz in our gravitation field the onli (if air resistance is neglected) force is the acceleration due to gravity

hence we mostly recognise g=Ag (acc. due to gravity)

later u will learn g-force as =apparantly weight/true weight
where all forces (so not juz acc. due to gravity) will be taken into consideration when caculating the net force in a lift off

so g-force is used mainly (as every1 has pt out.XD) to help work out a spacecraft's escape velocity

... xD.. (hope i am rite)

 

[Captain Gh3y]

regard to the main Q

g-term is a vector quantity measuring the g-force in a gravitation field. BUT becoz in our gravitation field the onli (if air resistance is neglected) force is the acceleration due to gravity

hence we mostly recognise g=Ag (acc. due to gravity)

later u will learn g-force as =apparantly weight/true weight
where all forces (so not juz acc. due to gravity) will be taken into consideration when caculating the net force in a lift off

so g-force is used mainly (as every1 has pt out.XD) to help work out a spacecraft's escape velocity

... xD.. (hope i am rite)

That seems logical.... So on earth when no other forces are acting on us,
g = apparent weight / true weight
= 9.8N/1kg
= 9.8m/s²
= 1g

Or on a planet with acceleration due to gravity is twice earth, or a rocket launch accelerating upwards at twice acceleration due to gravity,
g = apparent weight / true weight
= 19.6N / 1k
= 19.6m/s²
= 2g.