Force and acceleration and graphs

AI Thread Summary
Acceleration and force are related but not identical; they are proportional based on the mass of the object. The net force applied to an object results in acceleration that is directly proportional to that force. In the given problem, with a spring scale reading of 2.0 N and an acceleration of 2.50 m/s², the lack of information about the total mass makes it impossible to determine the reading on the second spring scale. Understanding the relationship between force and acceleration is crucial for solving such problems. More details about the system are needed to provide a complete answer.
Physicshelpneeded
Messages
19
Reaction score
0
i know that acceleration and force are similar and dependent on one another...but are they always the same and are their graphs always identical? or are they just proportional? :frown:

Also, anyone know how answer this question:

two forces are applied to a cart with two different spring scales (whats a spring scale?) the spring scale F1 reads 2.0 N. the cart moves toward the left with acceleration towards the left of 2.50 m/s/s. what does spring scale F2 read? :confused:

i know i need to use proportions to solve this...or at least i think so...but i don't know where to start...thanx for all ur help in advance guys :smile:
 
Physics news on Phys.org
A spring scale is simply a method of reading the spring force.
The problem description is not adequate to solve . Ray
 
ok...at least now i have an idea of what a spring scale IS...but i still have no idea how to go about solving this problem...anyone have any ideas? :frown:
 
Physicshelpneeded said:
i know that acceleration and force are similar and dependent on one another...but are they always the same and are their graphs always identical? or are they just proportional? :frown:
For a given mass, the net force applied is proportional to the resulting acceleration. For example: Double the force and you double the acceleration.
two forces are applied to a cart with two different spring scales (whats a spring scale?) the spring scale F1 reads 2.0 N. the cart moves toward the left with acceleration towards the left of 2.50 m/s/s. what does spring scale F2 read? :confused:
Not enough info given. I suspect you left out the resulting acceleration when F2 is applied.
 
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