# Force and acceleration! and graphs!

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???

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?

i know i need to use proportions to solve this...or at least i think so...but i dont know where to start...thanx for all ur help in advance guys

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?

Doc Al
Mentor
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???
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?
Not enough info given. I suspect you left out the resulting acceleration when F2 is applied.