Gravitational field strength unit

AI Thread Summary
Gravitational field strength is numerically equal to acceleration due to gravity, with both expressed as 9.8 N/kg or m/s². While they share the same numerical value, gravitational field strength indicates the force of gravity on an object, whereas acceleration describes the rate of speed increase. The units N/kg can be converted to m/s², highlighting their relationship. However, it's important to recognize the conceptual differences between these two quantities despite their numerical equivalence. Understanding these distinctions is crucial for grasping gravitational concepts in physics.
xdeanna
Messages
24
Reaction score
0
What quantity has the same numerical value as the gravitational field strength, but is expressed in a different unit?

g= 9.8 N/kg

i can't think of anything else that's 9.8 besides g
 
Physics news on Phys.org
Isn't g also an acceleration?
 
rightt :D thanks
 
Yes g is also an acceleration but that would be the same units. g=9.8N/kg

N/kg=(kgm/s^2)/kg= m/s^2 which is the same units as acceleration.

I don't really get what purpose this question might be trying to fulfill...
 
i thought the same thing too but the acceleration was right..the teacher told me for gravitational field strength you leave the units as N/kg
 
The gravitational field strength and acceleration represent different quantities: the first is how many Newtons gravity applies on an object, the second is how fast the object gains speed. The numerical value for both is the same, and that's no coincidence, but that doesn't mean there's no conceptual difference between the 2 values.
 
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top