How Do You Calculate Masses from an Acceleration vs. Force Graph?

[StephenDoty]

The figure shows an acceleration-versus-force graph, attached, for three objects pulled by rubber bands. The mass of object 2 is 0.300 . What are the masses of objects 1 and 3?
Part A
ANSWER: = Answer not displayed
kg



Part B
ANSWER: = Answer not displayed
kg




for object 2 the slope is a/F or 1/m or 1/.3kg

For object 3 the slope is a/F or 2a/5F or 1/5F*3a, what do I do now??
And for object 1 the slope is a/F or 5a/2F or 3a/2m what do I do now?

How do I use this information to find the mass of object 3 and 1?

Thank you

Stephen

 

[PowerIso]

Well, you know the mass of object 2. The graph tells you that 5N = M *5a soooo 5/(5*.3) = a and you found the multiple of a.

Can you use that to tell you the true value of a?

I might have read the value wrong and assumed it crossed the 5. However, it does cross the 1 without a doubt, so replace the 5's with 1's.

 

[tsd5060]

i had this same exact problem on a take home test and I still don't understand it.
Can someone please explain this to me? PLEASE and THANK YOU

 

[LowlyPion]

i had this same exact problem on a take home test and I still don't understand it.
Can someone please explain this to me? PLEASE and THANK YOU

What does the slope of the graph represent?

 

[tsd5060]

the slope of the force acceleration graph represents mass